It's looking like the rMBP line will get a very minor refresh in summer 2014, comparable to the minor refresh of February 2013. We might have to wait until 2015 for Broadwell MBPs. The only dramatic new MacBook I expect for the 2014 holiday shopping season is the rMBA.
The only chance for a 32GB Haswell MBP would be if Apple introduce a 17 rMBP. With Broadwell, there is a slim chance of a 32GB 15" rMBP. After Broadwell, the chances get better.Any thoughts on 32 GB RAM?