This sounds to me like a situation you need to really figure out for yourself. You've probably been promised millions of dollars in exchange for this deal - but

This sounds to me like a situation you need to really figure out for yourself. You've probably been promised millions of dollars in exchange for this deal - but you need to ask yourself: is that really going to happen? These large companies aren't always what they seem to be. Sometimes these deals are great for the business, sometimes they burry it. You'll need to be able to read between the lines to figure out if you're giving everything you worked for up or not.