I had posted earlier about the broadcasted blood-sport/arena battles, which is where corp battles might ultimately find a home within the larger frame of PC. For example, what if your corp purchased several of the battlegrounds and hosted the 8v8 contests (not morally objectionable due to consciousness migration), reaping the rewards from viewership of the spectacle as it's broadcast to mercs, capsuleers, and the citizenry of a particular system? Combatants could fight for individual fame and sponsorship in the same way that current athletes do. Companies might pay for their services, although battlefield (as opposed to arena) effectiveness would be much reduced as a function of the higher player counts and less structured combat environment. That to me would be a compelling and lore-worthy reason for retaining CBs. What I like about Dust is that it is essentially a PC game on a console. Their scope and vision would suggest a niche market, but the F2P model ensures they get plenty of exposure. MAG's Shadow War fell apart and the only thing that made sense besides meaningless pubs was CBs. Dust, as yet, is in no such predicament. I hope they keep their focus on their unique vision without feeling the need to make concessions to be like other FPS'.

In summation, I'd support other modes as subsets of PC as long as they are overshadowed by the parent mode (if they start to become more popular and the focus shifts then limitations need to be introduced to refocus the community on the bread-and-butter) and it makes sense within the Eve canon.