More than anything concerning the starters, I really want Froakie to be Water/Fighting in its final form, whatever it may be named or look like. And unlike the previous Fighting starters who were mostly physically inclined (With the exception of Infernape who could easily go mixed or special), I would love a specially focused fighter.
With the combination of Water and Fighting STAB, all that it would really fear would be Grass types and the everpresent flying Dragons, hence Ice Beam. Electric types could still pose a problem, especially Jolteon, but it would almost seem unfair if Froakie's final form could check all its counters at once, right? Also Jellicent would still be a big problem for this froggie.
And if it did end up going physical, perhaps something like this with the same items:
I see either a more traditional Swords Dance sweeper a la Infernape or perhaps a bulkier user of Drain Punch and Bulk Up, closer to Conkeldurr. It would still have the same advantages and disadvantages in terms of coverage but now it wouldn't be stopped by those cursed pink blobs, Chansey and Blissey.
What do you all think? This is just a wish after all.