Will it be worth to stay subscribed after ESO goes B2P?

That is the question asked many times after the announcement. It pops up so often because people feel it won't be worth. Let's remember that those people were subscribers up until it went B2P. People who don't mind paying 15€ a month for something if they think they get their money's worth.
From an earlier thread I came to a conclusion that more than half of the current subscribers won't stay subscribed while less than half will still support the game for sentimental reasons. Either way, no-one thinks that the subscription will be in any way profitable, and even those staying subscribed might be inclined to change their minds at any time.
Add in the new B2P population, you might get some new subscribers but in comparison to the current population, I would not count on a steady income. The only way to increase profit at that point is P2W shop. You should know better and PREVENT such a situation rather than act upon a situation you will be put in.
The solution of course is to make the subscription more tempting for both the current subscribers and possibly new players.
Some solutions are:

1. Make the crown values from subscribing better than ones bought without subscription.
This is a solution many of the current players suggested in the earlier posts and I believe will be most popular. It is a valid solution, and most easily implemented. If a subscription is, lets say, 15€ and you get 1500 crowns, the normal ratio for buying crowns should be more than 1€ for 100. F.E. 20€ for 1500 crowns. It should not be made a big deal as long as the crown store has vanity items and not P2W items.

2. Add some time-saving benefits to the subscription.
As Matt Firor said in the official announcement, the subscription option will remain for working people with not a lot of time to play. So give them more reason to subscribe. A percentage in EXP boost won't cut it. EXP is a long term time saving, and working people need to have content more accessible.
My idea was that non-subscribers should have disabled or restricted fast travel in such a way that non-subscribers would require (possibly crown store) consumables for each fast travel. Travel to player option should always be available to everyone.
This one is a bit more tricky, some of the new players might not like it, but I've seen something like this in another mmo and it was no big deal. That mmo sold the consumables for in-game currency.
The in-game currency model would not serve as much for motivating players into subscribing, but it is a nice gold-pit still.

3. Option to unlock DLCs.
Many players find that paying a subscription and then being denied a content they already p(l)ayed is dissappointing to say the least. And I feel the people that supported the game since the start deserve more love.
My suggestion would be to reward players that subscribed to the game from the start by unlocking the new DLC for free as long as they stayed subscribed to the point of the release of the DLC.
Another option is to reduce the price of the DLC by a percentage of the price for each 30 days subscribed from 17.03.2015. until the date of the DLC release. The latter option not really being a motivating one. The former would definitely be a deserving reward for the truly devoted players and would ensure that the current population of subscribers doesn't fall drastically.
What do you think?
Comment, suggest, vote for your favorite.