Who could be the new Representative in Al Ain?
Great chances of being one of Zayed's sons, as I already said here this was the position that Zayed held (and stood out politically) before becoming Emir, I believe it is an honor for his sons to occupy this position
And naturally Bani Fatima stands out
I believe that Hamdan and Mansour have no chance due to the positions they occupy today; Hazza, Tahnoun and Abdullah have great chances.
Outside of Bani Fatima, I only see Nahyan, Saif and Hamed with any political relevance to occupy this position
In the unlikely event that this position continues with Bani Mohamed's lineage, the strongest name that comes to mind is Sultan bin Hamdan, he seems to be very close to both the President and Mansour.
And an even less likely hypothesis: what if MBZ skips a generation and favors his own tribe? Any of his children or sons-in-law