Lama Osel most likely will not be openly returning to Dorje Shugden in the near future, there are a few things he has to consider:
- relationship with the Dalai Lama, it is not just his personal relationship, it is the whole FPMT's relationship with the Dalai Lama, if FPMT wants to continue to remain in the good books of the Dalai Lama, and if Lama Osel is to take a more prominent role in FPMT, then he cannot be seen returning to practising Dorje Shugden
- relationship with Lama Zopa, since Lama Zopa already openly advised against the practise of Dorje Shugden, if Lama Osel were to be seen returning to Dorje Shugden practise, it will be a severe conflict in the advice among the found gurus of FPMT - Lama Yeshe/Osel and Lama Zopa. Keeping in mind the interest of FPMT members, Lama Osel will not jeopardise that.
Lama Yeshe is very close to Dorje Shugden no doubt, and Lama Osel being his incarnation will naturally be attracted to Dorje Shugden too, and Lama Yeshe being a great practitioner, his incarnation is not likely to give up his heart practise given by his gurus for political reason. So Lama Osel may be practising Dorje Shugden secretly already, or will be taking up Dorje Shugden practise again in the future, because he is a true Dharma practitioner.
But no matter what, he will not be seen practising it openly for now and in the near future for sure.