If they have to switch to F2P one day then this game was a failure. This would mean they have not enough player who want to pay for it.There are other P2P games out which run successful for more than a decade and haven't changed their business model.
Since SWTOR went f2p their only real source of revenue is the micro-transactions - no download cost, no subscription fee - and when they did so they were forced to drop a huge portion of their staff. To hope that ESO goes down the same path...
In finding this place you have shown your potential to us...
The Morag Tong is an ancient guild of assassins
headquartered in Morrowind, celebrating murder in the name of Mephala.
They have been active since at least the First Era, and their targets
have included multiple rulers of Tamriel, high-ranking Dunmer nobility,
and countless others. The Morag Tong is unique in its sanctioned status
under the Morrowind government to perform legal executions, bound under
contracts called 'writs', although extralegal 'gray writs' are rumored
We are a race-restricted guild of practical role-players who embody the ideals and practices of "The Morag Tong" from The Elder Scrolls game series created by Bethesda Softworks. We plan to bring the lore and actions of the Morag Tong to "The Elder Scrolls Online" currently in development by Zenimax Online Studios.
For more information please make your way here. To join the guild please make your way here.