Instead of all this temporary content please work on bringing GvG asap, The guild missions was a great addition but there is no real competition between guilds, aside from who has the most influence. A few guilds might organise a sPvP tournament or bump into one another in WvW, but there is no real reward for coming out on top in those situations (For the guild, not individuals).
If GvG and Guild halls are unlikely to be implimented anytime this year then please try to introduce rewards for guilds skirmishing in WvW or sPvP such as gaining x amount of influence by killing enough members from a single opposing guild, maybe Guild leaders/ect would have an option to target a guild to fight against and the reward would depend on the size of the guild and how many members are active, making attacking a smaller guild and its keeps much less rewarding than taking on a behemoth one.
Thanks for reading
(edited by ixon.2496)