In a way, I'm happy to hear that they're making them "strong". There's no way you could have said that about Elisabeth and Mature in XII. This should mean that extra care is taken into making their moves worthwhile and solid, rather than just putting characters into the game to appease headcount-fans.
Seeing how well the old characters have been re-adjusted to fit into the console game, and how well the UM games come out, I'm fairly confident in SNKP's ability to balance a game, when given time. It'd be in their best interest to make these console characters worth playing anywho, or they'd just be wasting money producing things that noone gets any use out of.
So it's in their best interest to keep them as tourney-worthy as possible,especially if they move these character to the arcade game. If SNKP liked the taste of the US tourney scene that they got this year, that also included players from Singapore, UK, JP, and more, then it's in their best interestest to keep the community as tightly-knit as possible.