How can you "remake" something if you never actually finished making it?
Judging by their previous stuff I think it's safe to say they made Hypno Slave as their "first public game" and now that they've "grown wiser" (I really don't think so) they notice areas where they could "improve" which usually requires a total rewrite of the game, since old code is like stale old cookies, better to throw out and make/buy new ones.
I mean if anything they should've done it like what the Silver mod for Witch Trainer did, it streamlined dumb repetitive game design decisions while at the same time introduce new content.
And I remember Hypno Slave being worse than your average 3DCG russian cash grab in term of game play, since at least those games doesn't try to be intriguing.