I'm surprised at the amount of confidence you have in the USCIS that you might get a greed card. If you are still on a visa, I don't see how soon you believe you can get a green card in a reasonable amount of time. I'm not sure you can use the EB-1 category even with an L-1 - unless you're at a very high level in your company. Even for that category, the waitlist is currently about 5 years.