I am currently on my 12 months OPT expiring this September 2015. My company is willing to sponsor my Green Card (EB2) now which is also filing my H1B this April. I've already used my 17 months OPT extension.

If my company starts processing my GC now, what's chance that I'll get my I-140 by this September just in case I am not selected in H1B pool?