I think that the soul eater isin`t that great of a blade for riku to use and probably wont get any were with in KH2 xpecially with the new enimes showing upp.....so as u see in DD..BHK hands riku the oblivian witch makes sense if u look at it...! I can see riku with the oblivian becasue its a darkness key blade and he well at least was/is darkness.....It is also said that riku was the true keyblade owner..but he chose the darkness over the light that is why sora got choosen insted..! any way the keyblade in KH when answem was in Riku`s body made a very imporant role and possibly a very important one in KH2.....My theory is that it will unlock sora`s and BHk`s heart and let them become wrong i can also be wrong......I doubt myself for what i say sometimes also! 