I believe (and I say this as a premium player) I think it came time to review the F2P model or at least make it less restrictive if you, Funcom, you want to attract new people.
The WB that you have introduced, give gear T1 and T2 as if they were peanuts or candy at the Halloween party, they also give relic and rares T3 and weapons and accessories equivalent, so why there are so many closed doors if players f2p have access to that level of gear?
To my advice:
1) T1 should be totally open, it is useless to keep Vistrix closed for a stupid cape that is now obsolete, the F2P have access to the legendary capes of WB!
2) T2 should be totally open, what sense does it hold closed that place when players F2P have access to that level of gear but then do not have experience in playing at that level?
3) T3 should be open, at least partially open at least the lower floar of T3, thanks to the rare relic T3 and T3 generously offered by WB f2p also have however access to the gear T3, also it is about to introduce LFG and LFR, might as well the F2P have access too!
4) If you want to make more money and sell more RotGS open the Khitai in the same way it opened Gateway to Khitai, open world, instances closed. Open NG, Chosain, KK and Paikang maps, but keep closed instances (Pagoda-Flame ... T4. Etc.). It is right that those who paid for it can not find the doors closed on his face.
Item epic in khitai (helmet, chest, boots and wrist) will buy (respectively 16 and 12 golds), the limit for gold of F2P is 10 gold, they may still not buy them, the remaining 4 pieces (legs, shoulders, gloves and belt) can be found only in the instances (that are closed to them), then what's the problem in letting them enjoy the new maps and quests and some blu item (they probably will not want them either, since you gave them t2 and t3 easy by WB)?
5) Make these changes known and I do not mean the silly letters that come to those who are already your customer (we pay you, we know), but make it known on forums and websites unrelated to your community!