Dunno - SSB on the WiiU didn't do all that well for a mainline SSB game.

Pokemon would be awesome! I hadn't thought of that.

Fire Emblem Warriors would be the best. It would be perfect I mean you could have all the archers have the exact same movesets that way you could use your favorite character!! It could be done with each class too so there would be a nice variety.

It hasn't hit lifetime sales yet and the fact that it had a 3DS version release before hand and has still managed to sell 3m+ since November is very good.

your joking right? With an Install base less than 10mil it has sold (ship+digital) 3.39mil within the first 6 weeks and SSB 3DS did 6.19mil+.

You have to take into account 3ds sales as well, even if a musou game is on wiiu. HW a zelda only musou game sold over 1mil WW in 4months (5months japan) and SSB>>>Zelda in Sales. 

As much as Hyrule Warriors was cool, I dunno if I would want another spin off DW games honestly. Unless it was maybe Animal Crossing Warriors! >: )

It makes a lot of sense, but I'm having trouble imagining the story. Maybe a mix between Pokepark and Conquest.

Shingeki no Musou

FF would work well, they already got tons of chars and fodder+ bosses.

I do not know how a pokemon or SSB would work in that sense.

All could be huge, but sequels tend to drop except for DW and SW.

Final Fantasy one would be amazing. I'd actually consider getting it.