We Need More WvW entry space
I believe the new WvW map is intended to resolve exactly the issues you mentioned.
Check it out: https://www.guildwars2.com/en/news/the-edge-of-the-mists-a-new-map-is-coming-to-wvw/
Or you could move to a less populated server.
Or you could move to a less populated server.
I am on TC (the fourth ranked server in NA) and I have no problems with queue unless it is reset night and even then as long as I am not trying for EB I am in 10mins after queuing up.
Upping the limit on maps would just make WvW even more imbalanced and laggy which funny thing is, those are the two biggest complaints about the game mode.
(edited by Banono.4597)