As far as i understand:
Fellaini is not in the Belgium training camp with the rest of the national squad, the news coverage on Belgian television said the reason is for finalising a transfer to Manchester United.
I also read most articles saying a price is agreed with Everton, but they are discussing how it will paid at the moment.
Everton only seems to want let Fellaini go as soon as they manage to get a deal done for a replacement. This was looking to be Fernando from Porto at the begining of the day, but it seems they are going for McCarty from Wigan now. So i guess the only thing stading in the way of the transfer of Fellaini to United being finalised is weither the transfer from McCarthy happens or not. As soon as that deal is done, i expect some action on the Fellaini ground.