The option to fuse the items with the same name should spice things up a bit:
1. re-roll the stats -> cool
2. re-roll the stats with class specific rolls --> awesome
3. partially combine the stats ---> legendary!
4. fully combine the stats ----> lengen-waitforit-dary!!!
Put a cap on the number of times fused or not, I'd be pretty psyched anyway to see the legendary drops again.
This should also solve the problem of out-dated legendary items when new patches roll out.