IF the game was like GW2, buy and play as much as you want without subs, I'd get it. But giving away 60 euro and 13 euro each month, no thanks. Not even for TES.
I don't really see how this could help them, AFAIK when this was announced for SWTOR they lost a pretty large part of the player base which returned only after SWTOR went F2P and lowered some restrictions. Majority of MMOs we get today are F2P/P2W and people got used to it, so a subbed MMO which is not WOW will have a hard time succeeding, specially with GW2 still being around.
I give TESO a maximum of 2 years before it's forced to go F2P. And that's stretching it as far as I can. Luckily for me I have GW2 and the upcoming Star Citizen.