Oh I remember that so that was not a Bomber. But It Definately Looked like a manned aircraft.Tailless delta , twin engined
There are canards too.TE - Great.
Tailless delta - Ugh.
If there's a tailless delta being considered, there should be a canard version as well. But I don't think it's a good idea to go for delta over lambda, unless the plan is to keep it simple.
I recall the Americans were showing off diamond winged drones with the F-35. So that's an option too.
I suppose AI Based dog fight Algorithms will be game changer.