Siege sounds interesting and though not a pvp player am looking forward to seeing how they get on with it. Am relieved kingdoms haven't made an appearance as yet though ...
I quite liked the tri-quality system, though admittedly not at first, improvements there were needed though and sounds like you have fixed that perfectly.
Gold & Silver boulders should be rarer.
Not that I don't agree ... but, I never found them when they were more frequent, lol, guess I'm destined to never find them now.
I'm glad you decided to raise the cap from 200 to 300 but I'm still not sure enough has been done to retain players once they reach it if I'm honest ... however, overall, you still get my vote.