How long will it be before LL will tell us why their version of Collada will not be compatible with Blender's version of Collada. I am not saying it will, of course. I can't imagine why they would want to do that.
What tools will be available to SL creators (of at least Blender quality -- remember, that is a freebie developed by a bunch of unpaid persons) to create the new avatars. Once again, I am not saying they would not include those tools. I am sure they would never not do that.
How long will LL keep saying that they will not cut support for prims & textures before they announce that no more support will be available for them? I am not saying they would do that, of course.
since collada is a STANDARD they will not be able to claim anything (they may have limits on the size/resolution of the mesh but the format is the format)
tools exist already since Poser and DazStudio both have .dae export (and its a fairly common format)
collada is a MESH format it still needs textures (and dropping prims would be insane)