Well since the Wu has fallen off in the past couple years I garuntee the release of Ghostface, Raekwon, and Method Man solo albums will turn a couple of heads, and hopefully put Wu-Tang back on top, where they are suppose to be.
Another group that will blow up is UGK. With the release of Pimp C from jail, and the Solo success of Bun B, they are going straight to the top.
2006 should be a good year for the real rap albums, i hope to god!