It will never happen. They already went the scumbag route of skill points and skill lines in the crown store, which will make them significantly more money as plenty of fools will buy that crap.
I've had one of each class since launch. In fact, i've had 4 mains since launch and now have 5, spanning 5 classes.In the 5 years game has been out, every class except necro had their "glory days".
If you want to metahop so badly just level one of each class, i hear skyreach runs are real cheap this time o year.
On the classes i want to play both stam and mag, but cant be bothered to lvl 2toons, i just go Imperial, its a safe bet for both especially for necro and warden.
They should have class change tokens to begin with. But considering all the sweeping changes they routinely make to how classes function they ought to be mandatory at this point.
That means Undaunted 9, Vigor if stam, FG/MG 10, 60/60/60 horse, crafting perks to extend potion/food durations, complete at least the game's main quest, and (oh yeah) over level 50 with class/weapon skills fully leveled. That is NOT 'power leveling to 50 by running the Alikr dolmen train for a week'; rather, it represents half a year invested.