Sentinel's GMTI is extremely flawed as I am sure you know if involved with it. And don't even mention the Bulge on top
Can't let that one go.
In what way is it 'flawed' - I am very involved with it and it works extremely well, has a significantly larger coverage area than the bag, much better Radar and an on station time of ass numbing proportions.
The Bag wins on the mission kit, which is fantastic thanks to having been designed with embedded operator input and with rapid software changes. However, the Sentinel kit is still fairly good and will be even better after the next software release.
The 'Bulge on top' is not really used anymore, but still works fine.
As for the future, what could we do with a modern, long endurance, high altitude, high speed jet equipped with an extensive comms suite and a state-of-the-art Radar that tracks ships just as well as it does vehicles? Hmm...