Well i dont know, see the thing is l2j have this really idiotic idea of dropping javolution and they replace everything with hashmaps(well most of the times they use hashmap or concurrenthashmap). That alone to quote 1 of my old java mentors and current l2emu(jfree) private project owner "the shittiest pack around". :D
Thing is you guys do great the pack progressed a lot from the original state, yet mostly the things i see are syncs from l2j on the crucial areas.
Basically as crucial areas i mean project management(using ant is just inefficent), c3p0 should be dropped for bonecp and configured to its fullest potential, the new l2j mmocore which guys have as i see is just average at best, the threading is a joke. Basically most of the things l2j does are just below average stuff.
You guys should really examine l2jfree and find its hidden jewels.