I've wondered lately whether there could be a future for crafty philosophers to carve out a niche in EA. Many economists of late have been able to utilize their skills to do things that, on their face, do not appear to be economics as traditionally conceived. There seems to be a similar opportunity in philosophy, given the skill set that philosophers bring to the table. However, I think the greatest difficulty would be the fact that philosophy (and philosophers) have typically been interested in advancing specific discussions about particular philosophical problems. In a sense, the goal is to discover what's true. In that light, EA simply isn't as interesting to many philosophers. It doesn't seem to pose great unanswered philosophical questions. The premise of EA is relatively simple, and it seems that, given many philosophers sympathies toward consequentialism, it may be met with wide acceptance. However, that doesn't leave anything to discuss philosophically, which is an obvious problem for philosophy as traditionally conceived. However, I see no good reason why at least some philosophers should not branch out in their line of work and become interested in a sort of "everyman" ethics. This wouldn't involve as much discussion about what is right, but would instead involve persuasion. I certainly think there's room in the field for it, and given the fact that many departments are on a sort of "justification treadmill" in having to justify their existence to the heads of their university and the general public, it may be exactly what the field needs.
I have actually heard some moral philosophers lament about how when people get sick, they call a doctor, when their car has problems, they call a mechanic, etc. When they have a moral predicament, however, no one calls a moral philosopher. It seems to me that EA is a perfect platform to be advanced by philosophers, and that at least some philosophers might welcome the opportunity. The question that needs to be answered is whether this can be done by a philosopher who is trying to build a career, or if it must be relegated to guys like Singer who already have successful careers.
Broadening it out a little, many EA organisations (at the very least GiveWell, CEA and Leverage Research) are heavily research-focused, and in some cases founded and staffed by people who were on the academic track and wanted to be academics or researchers. So it's worth considering them at the same time, partly as a related alternative which will appeal to some of those interested in this thread.