NFL Ticket is something that will be around forever. The question is whether it will be exclusive to one vendor, available through multiple providers, or delivered direct through NFL.com.
Speaking only for myself, I would personally prefer to get it through NFL.com. I cancelled Directv, and despite the complaints of my family, I don't really want it back. My kids spend more time watching Netflix than anything on Directv, plus we have a media manager that they watch for all the stuff we have on hard drive. (I spent a couple months ripping every DVD in our house and organizing it on a 2TB drive).
In any case, I could do without it being on Directv. But, I will admit that wherever it goes, I will go. God doesn't roll dice with the universe, and I don't roll dice on whether I get to watch the Broncos on any given week.