Practical side of me: Probably won't happen. I thought it would be cool, but I now I think it would just add an unnecessary element to the graphics in Blockland. We already have fairly decent a type of lighting effect. Aside from that, when did you see a block shine in real life like that? This is my personal opinion.
[Edit] Most likely, Badspot will disprove the idea.
[Edit 2] What the hell is "Shapen"?
Other side of me: Not Bloom...HDR >:O
Or at least a post-processing "add-on" (Unless that's what you were talking about) :\ Whoops, I let my brain go a little overboard there.