Where'd you get that from? The line a page or so back about "Even if they hire one programmer", or something, that someone mentioned?
On The Spot confirms they have Treasure working on it, and that members of the original dev team, that are still with the company, are working on it personally.
And there hasn't been any 100% new in-game graphics displayed
yet (There's "exterior" art and MAYBE touched up Bust shots of the character portraits when speaking), so, if anything, the fact they didn't HD the whole game up with new sprites supports the "2D is too friggin expensive!" ideal... unfortunately
I'd love for the arranged modes to toss in maybe a new enemy here or there, or a new boss battle. If anything, we should at LEAST be guarenteed some new colors for every character, as 12 player online VS should support the possibility of every person picking the same character...