It was not discontinued because of the Incredible. It was replaced by the LG Alley and the Motorola Devour in the pricing segment.
$49.99 - LG Alley
$79.99 - Motorola Devour
$149.99 - Motorola Droid
$199.99 - Incredible
I figure the Droid will be EOL when the Droid 2 comes available and the DroidX will come in at either the $199.99 price point or the $249.99(more likely) pricing. But I would wait on the Incredible, I've had to replace (on the 3rd one now) my wifes Eris with new ones because the 2.1 updates slows the phone down tremendously and lots of bugs start happening with Silent call bug, speed dial, etc etc. STAY AWAY!