Personally, I'm happy with the group we've got here, we're all on the same page when it comes to RP'ing so I don't think we need any more people. Also, I see why new applicants are hard to come by: we've already got an established setting, detailed sheets and in-depth posts, it can be daunting for a person to read all that and come up with something that fits with what we've already got. 

If all of us are seriously considering going through with this, I suggest we re-structure stuff a bit. You say the northeastern chunk of Ardacia is cursed? Well, why don't we have it as some failed kingdom that actually IS cursed? Maybe rulers and Houses have come and gone, but nobody has managed to lay claim to it. It's a desolate region, filled with squabbling warlords and petty kingdoms. This can provide incentive for neighbouring kingdoms (I guess in this case it would be Kedoren and Aaldorenfeald) to feud over it. Let it be an unclaimed region, like the Sylvain Forest. 

FInally, while I believe some of you may disagree, I feel like we need to, I dunno, slim things down a bit. The way you guys set up the RP initially is good, but aimed towards more players. With five kingdoms, we need to play to our strengths (less people - easier to manage), focus more on an overreaching storyline to tie us all together, as opposed to worrying about getting the history of irrelevant regions in our kingdoms just right and coming up with plot hooks nobody picks up on. (I'll be the first to admit I'm guilty of this) We should get together, brainstorm and decide on two or three plotlines that are going to drive the story and get to the actual RP'ing. We spent far too much time world-building the first time around and eventually stalled when it was time to tell a story, which is what the point of the RP is in the first place, right?