Although B&O missed the first bus when digital music made the major shift from optical to disk based storage the good news is the bus hasn't gone anywhere - if the Encore ticks all the boxes regarding formats, control, distribution, design etc. it can still be the must-have digital music system. The format isn't going anywhere anytime soon and so the Encore can be the basis of your system for years to come.
My only concern would be where technology is still moving at a pace in which case there can be a significant lag.