Unlikely. I'd estimate it would come around to 25GB+ as a download due to the gigantic amount of content and visuals, therefore they mightn't bother.
But if you ask me it will be an eventual thing, similar to Uncharted. So if you aren't buying the standard disc you may just have to wait a short while. Better off getting it on disc if possible, the download would be a **bleep** to do and would chew up ALOT of space on the drive
In my opinion I think it might. If you look at the latest blockbuster games that have coming out in the past year. I would say 70% of the biggest have been availble day 1. E.g ACIII, COD, Ni No Kuni etc... Plus, the PS Blog said they were looking into it. They wouldn't give us that information if they thought it wasn't likely.