Its very common for game companies to lay off people between games, and re-hire them when games need a team to work on them.
This is actually GOOD of them and shows GOOD planning to do this before they run completely out of reserves, which would lead to them being bankrupt. Doing it before that point means they can continue until they get a game going (which they are hoping is wildman).
As opposed to someone like the APB devs, who budgeted to be broke at the game release after spending $100m, which basically meant they immediately went bankrupt.
Its very likely that MS's canceling of active development for age of empires online had something to do with this, since GPG is losing that income stream.
GPG is a proven games studio that has released successful games. They are more likely to succeed than a company with no history doing a kickstarter.