Any word on Nassib has been that he's developed very nicely behind Eli. Take in the fact that he's healthy, has not taken a real shot since getting blown up in the Pinstripe vs. WV, and that's a bonus.
There will come a day that he's going to get a chance, there's just not enough quality QB play in the NFL for him not to. Unfortunately, I don't think that will ever materialize in NY. Eli has at least another 3-4 years, almost assuredly as a NYG.
Nassib will either become too expensive to keep as a backup or too valuable a trade piece for the Giants to pass up on. I'm expecting serious action on him at this years draft. A team can get him on the cheap for one more year and find out if he's got the chops to be their QB.
They received significant interest on him last year but didn't want to go through the process of drafting another backup, especially with the uncertainty behind Eli's contract negotiations at the time. I expect him to be in the league a very long time , again, unfortunately not as a NYG.