Wow, haven't posted here in a LONG time...
Anyway, this news really doesn't come as a shock to me. It's gonna be sad to see Foster's go since it, in my opinion, is one of CN's best shows on air currently, but if it's what has to be done, then I won't complain. After all, we wouldn't want it to become another "SpongeBob" and have the plotline and characters ruined because the writers ran dry on ideas (sorry, Spongefans...I'm even a fan of this show myself, but I really have to admit that it hasn't been the same since season 3). I can understand if they're having trouble thinking up concepts that aren't repetitive.
BUT at least this show still has originality and creativity even at this point, so I have to hand it to the crew-they've done a really good job over the years with Foster's. It'll definitely be missed once its gone.
As for Medikor's idea I'd say that that COULD be possible, actually. After all, we have that second Ben 10 series, so you never know...I would only be ok with a spin-off or anything like that if it was done right, though, so honestly, I'm not really dead-set on having a spin-off, but I don't despise the idea, either.