Bjoondo,
One thing I didn't notice, I may have missed this, with the new cassette ranges and RD available I would think you (OP) could make the new bike in any gear range you wanted/needed. The ranges for cassettes from both Shimano and SRAM are phenomenal. I was looking at an article about the SRAM WiFli systems and you can get a pretty low big cog now, with a nice spread between the 11 or 12 on the bottom and the 32, or even lower I believe. I have an 11-26 on the rear of my CAAD 10 (SRAM) and a compact double on the crank with 50/34 on the rings. These offer a good range fo rme here in out flat area, hills that we have can be done without killing myself.

I really believe you can enjoy almost any terrain you ride with the triples available, even Campy has released a super nice triple for their 11 speed cassettes' system. Shimano had triples up to Dura Ace level so the quality is definitely available for you. Best of luck in making your decision on what to buy, N+! choices are a lot of fun.

Bill