While it does make sense to discuss these things, the answer to the question in this thread title is most likely going to be "no."
Sieving is still eliminating numbers far faster than full testing can. With sieving ramping up, we should be able to get pretty far out ahead of the range of n values being assigned by the SoB server.
Also keep in mind that the coordination process is not ready for prime-time, the stats aren't integrated to the point where they will be sufficiently rewarding to the "average" user for sieving, that it requires another client (with a pretty good sized download of results files) and that it adds a lot of additional complexity to the project and the client(s).
That said, at some point it will have to be discussed what the medium and long term plans for sieving are. Other than Louie and perhaps Paul, I am not sure anyone understands the situation well enough to make accurate projections.