What an interesting hypothesis, Thom. And nice to see you back here by the way. The thing is, how will HH Trijang Rinpoche take over NKT when Geshe Kelsang Gyatso has been extremely clear and adamant about not recognising tulkus at NKT? As far as I've heard, Geshe Kelsang Gyatso has not even gone to see the Young HH Trijang Choktrul Rinpoche, who is the incarnation of his root guru.
i do think it is a great idea though for HH Trijang Rinpoche to take over NKT, for he will have a huge network at his fingertips practically overnight. However, I think that a better way for the transition would be not to wait til Geshela passes into clear light but for Geshela to hand over the reins of the NKT now. This would tell all the NKT centres of Geshela's intentions so there is no question or contention when Geshela is no longer around.
Geshe Kelsang Gyatso has expressed concerns over succession and HH Trijang Rinpoche taking over would be an excellent succession. i hope that the NKT members will go along with the plan though. I know the NKT members are not necessarily an easy bunch as they have strong opinions
i have not heard what they think of the young HH Trijang Rinpoche either.
If this is to come to pass, it will certainly be interesting!