Hmm, in terms of stack and reach number, the 2018 Alu Diverge is quite similar to 2017 Diverge.
Also I'm still waiting for the official weight, I'm guessing the site that reported the weight is estimating it based on past year Diverge and S-Works Diverge
The pros for 2018 Diverge is it seems all models will be able to mount racks front and rear whereas 2017 only DSW is able to mount rear racks