Ehh it's a bit early to close applications in my opinion seeing as how most have really only expressed interest based on the FE label, and have yet to be informed about what the RP is about itself. I'm posting like crazy and contributing(?) ideas, but I'm not committed yet myself, it depends on the characters and what's settled on at the end. 

That said, I suppose you can reopen apps at anytime.
Just think it'd be a pity to turn away someone good now since they'll probably never check back even when apps are open xD

Though I have to ask, ideally how many players are you aiming for?