I know Rosen already confirmed this through discord, but reading the itchi thread:
>Sadly, there's not way to cure Dr. Vemix in the game. (But there's always the future...)
> (And yes, $7 is a little cheap for the amount of content in the game, but I'll be upgrading it to $10 once the 2 new characters and more are added! Thanks again!)
Interesting to see the author mention these exact same plans. Pretty excited to see Dr Vemix back, would love to recruit her. Was surprised on first playthrough that she wasn't playable (same with Vivian and Luxatep) as I figured she'd be the tech character of the party (rather than Alisha, who I only discovered thanks to this thread when I was about to fight the final boss on fight play).