In theory WAR could still be saved, salvaged and become a good game. However the effort to make the major changes would likely take several months (perhaps even 6+ at the worst) of development work and a good crew of developers and community folk to see it through to the end. Sadly a lot of good ideas were tossed around a great many moths ago (including pre-launch) that could have 'saved' the game, but many of them were essentially ignored.

Perhaps the simplest mechanism that could be employed would be to rework the character (and NPC) power curves by level so that all of the content of the game could be made relevant again. If a T4 character was not so significantly more powerful than a T1-3 character, then each Tier of the campaign could be used as a whole as a part of the RvR campaign. The lower-level Tiers thus would become alive and active again (and would remain so) as higher Tier players could travel back to fight and lock them down as a part of locking down an entire racial pairing.

However the development work to re-tune character levels, all the MOBs and likely even the equipment would be a very major undertaking. However at some point radical changes must be considered lest the ship sing, neh?