Currently reasearching a religion second is almost useless. I've had plenty of times of reasearching a religion only to have another civ beat me by a couple of turns.
I have two ideas to give those who were in the middle of researching it something for their efforts:
1. Refund:
When a religion is founded, all other civs who have tech points in that religion are given gold equal to the tech points they've invested. All civs then recieve that religion tech for free (you can't benifit from it without cities with that religion). Similar mechanics to how wonders work.
2. Religion for all:
Simply, when you recieve a religion tech one of your cities gets that religion, it just won't be the holy city (and you don't get a free diciple?).
I have two ideas to give those who were in the middle of researching it something for their efforts:
1. Refund:
When a religion is founded, all other civs who have tech points in that religion are given gold equal to the tech points they've invested. All civs then recieve that religion tech for free (you can't benifit from it without cities with that religion). Similar mechanics to how wonders work.
2. Religion for all:
Simply, when you recieve a religion tech one of your cities gets that religion, it just won't be the holy city (and you don't get a free diciple?).