why they did not upgrade the NON touch bar ... touch bar is the worst thing

i hope the new macbook air replacements wont have that garbage.
Intel haven't announced a successor to the 15w CPU with Iris Graphics -
i5-7260U - the 28w
i5-8259U CPUs that have made it into the 13" MacBook Pro with touch bar that was released a few days ago have been in the Intel Ark site for months now - launched Q2 2018 with mentions as far back as
April based on a brief search.
There's little tidbits going around as to a successor to the 15w i5-8250U (which has UHD620 graphics - on par with MBA) having much better graphics but nothing calling it Iris Graphics or having EDRAM.
There's plenty of time between now and October though, I'd expect updates after the end of the Back to School season as Apple clear out the old 2017 stock to the college kids.
There was a story going around about a lower cost
retina MacBook coming out in June. If it were powered by this CPU - which I think could otherwise have gone into an MBA - it could help merge the MBA and non touch bar MacBook Pro into something that instead fits into the Retina MacBook line - a non pro machine that's a bit cheaper.
Coming later this year is apparently
Whiskey Lake (15w CPU replacement but not with Iris Graphics)
and
Amber Lake (5w CPU replacement)
In effect, the Mac line becomes:
12" Retina Macbook - 5w Intel CPU (fanless)
13" Retina Macbook - Retina display using MBA CPU
13" Macbook Pro (already released)
15" Macbook Pro (already released)
I'd hope that the 12" Retina MacBook gets more USB-C ports at the very least - if not Thunderbolt 3 ports but the 13" Retina MacBook has to come with at least 2 Thunderbolt 3 ports if it's replacing the non touchbar MacBook Pro. It could re-use the existing non touchbar Pro case design if needs be but the right hand side would look very under used.