I don't know, perhaps but I always thought they waited (for what ever reason). Perhaps my memory has faded a bit, but I remember getting my 2012 rMBP and it was months after Dell already rolled out a model with the same chipset.
Sorry in advance for the long post, but I looked at every MBP and the processors each used then compared their respective release dates. Apple generally releases MBPs within 1-6 months of their respective processor's release, with two major exceptions being the late 2008 MBP (9 months) and the Mid 2015 15'' MBP (10 months).
Assuming similar processors and an October release, the 13'' 2016 will be 13 months late and the 15'' will be 5 months late. That is, unless the 13'' uses Kaby Lake while the 15'' either sticks with Skylake or isn't upgraded until June (ack!).
The data (feel free to pick at it, I don't fully trust my sources but I think it's mostly correct):
MacBook Pro Processors
1st Generation
Early 2006 MacBook Pro 15'' (1/10/2006)
T2400 Yonah (1/2006
T2600 Yonah (1/2006)
-released same month
Early 2006 MacBook Pro 17'' (4/24/2006)
T2500 Yonah (1/2006)
-4 months later
Late 2006 MacBook Pro (10/24/2006)
T7400 Merom (8/2006)
T7600 Merom (8/2006)
-2 months later
Mid 2007 MacBook Pro (6/5/2007)
T7500 Merom (5/2007)
T7700 Merom (5/2007)
-1 month later
Late 2007 MacBook Pro (11/1/2007)
T7500 Merom (5/2007)
-6 months later
T7700 Merom (5/2007)
-6 months later
*T7800 Merom (9/2007)
-2 months later
Early 2008 MacBook Pro (2/26/2008)
T8300 Penryn (1/2008)
T9300 Penryn (1/2008)
*T9500 Penryn (1/2008)
-1 month later
Late 2008 MacBook Pro (10/14/2008)
T9300 Penryn (1/2008)
*T9500 Penryn (1/2008)
-9 months later
Unibody
Late 2008 MacBook Pro (10/14/2008)
P8600 Penryn (6/2008)
-4 months later
T9400 Penryn (7/2008)
-3 months later
*T9600 Penryn (7/2008)
-3 months later
Early 2009 MacBook Pro 17'' (1/6/2009)
T9550 Penryn (12/2008)
T9800 Penryn (12/2008)
-1 month later
Early 2009 MacBook Pro 15'' (3/3/2009)
P8600 Penryn (6/2008)
-9 months later
T9400 Penryn (7/2008)
-8 months later
T9550 Penryn (12/2008)
-3 months later
*T9600 Penryn (7/2008)
-8 months later
*T9800 Penryn (12/2008)
-3 months later
Mid 2009 MacBook Pro (6/8/2009)
P8400 Penryn (6/2008)
-12 months later
P8700 Penryn (12/2008)
-6 months later
P8800 Penryn (Q2 2009)
-??? same month ?
-6 months later
*P9900 Penryn (Q2 2009)
-??? same month ???
Mid 2010 MacBook Pro (4/13/2010)
P8600 Penryn (6/2008)
-2 months later
P8800 Penryn (Q2 2009)
-??? same month ???
520M Arrandale (1/2010)
-3 months later
540M Arrandale (1/2010)
-3 months later
620M Arrandale (1/2010)
-3 months later
*640M Arrandale (9/2010)
-5 months earlier likely due to option being added later
Early 2011 MacBook Pro (2/24/2011)
2410M Sandy Bridge (2/2011)
-released same month
2620M Sandy Bridge (2/2011)
-released same month
2635QM Sandy Bridge (1/2011)
-1 month later
2720QM Sandy Bridge (1/2011)
-1 month later
*2820QM Sandy Bridge (1/2011)
-1 month later
Late 2011 MacBook Pro (10/24/2011)
2435M Sandy Bridge (9/2011)
-1 month later
2640M Sandy Bridge (9/2011)
-1 month later
2675QM Sandy Bridge (10/2011)
-released same month
2760QM Sandy Bridge (9/2011)
-1 month later
*2860QM Sandy Bridge (9/2011)
-1 month later
Mid 2012 MacBook Pro (6/11/2012)
3210M Ivy Bridge (6/2012)
-released same month
3520M Ivy Bridge (6/2012)
-released same month
3615QM Ivy Bridge (4/2012)
-2 months later
3720QM Ivy Bridge (4/2012)
-2 months later
*3820QM Ivy Bridge (4/2012)
-2 months later
Retina
Mid 2012 MacBook Pro 15'' (6/11/2012)
3615QM Ivy Bridge (4/2012)
3720QM Ivy Bridge (4/2012)
*3820QM Ivy Bridge (4/2012)
-2 months later
Late 2012 MacBook Pro 13'' (10/23/2012)
3210M Ivy Bridge (6/2012)
*3520M Ivy Bridge (6/2012)
-4 months later
Early 2013 MacBook Pro (2/13/2013)
3230M Ivy Bridge (1/2013)
-1 month later
*3540M Ivy Bridge (1/2013)
-1 month later
3630QM Ivy Bridge (9/2012)
-5 months later
*3740QM Ivy Bridge (9/2012)
-5 months later
*3840QM Ivy Bridge (9/2012)
-5 months later
Late 2013 MacBook Pro (10/22/2013)
4258U Haswell (6/2013)
-4 months later
*4288U Haswell (6/2013)
-4 months later
*4558U Haswell (6/2013)
-4 months later
4750HQ Haswell (6/2013)
-4 months later
*4850HQ Haswell (6/2013)
-4 months later
*4960HQ Haswell (9/2013)
-1 month later
Mid 2014 MacBook Pro (7/29/2014)
4278U Haswell (7/2014)
*4308U Haswell (7/2014)
*4578U Haswell (7/2014)
4770HQ Haswell (7/2014)
*4870HQ Haswell (7/2014)
*4980HQ Haswell (7/2014)
-released same month
Early 2015 MacBook Pro 13'' (3/9/2015)
5257U Broadwell (1/2015)
*5287U Broadwell (1/2015)
*5557U Broadwell (1/2015)
-2 months later
Mid 2015 MacBook Pro 15'' (5/19/2015)
4770HQ Haswell (7/2014)
*4870HQ Haswell (7/2014)
*4980HQ Haswell (7/2014)
-10 months later
Note: HQ Broadwells came out in 6/2015, 1 month AFTER release
Late 2016 MacBook Pro (10/2016?)
6267U (9/2015)
-13 months later
*6287U (9/2015)
-13 months later
*6567U (9/2015)
-13 months later
6770HQ (5/2016)
-5 months later
*6870HQ (5/2016)
-5 months later
*6970HQ (5/2016)
-5 months later
***looking at these last ones, I'm starting to think maybe, just maybe, the 13'' could use Kaby Lake-U while the 15'' uses Skylake-HQ???