[quote=@Kho]
In line with BBeast's suggestion that 'the threshold for ascending to godhood can be reduced to, say, Level 6 or 7', I've edited it in the proposed OP to level 6.
[/quote]

It largely depends on how many Turns we want to make the new players wait. Getting to Level 6 takes 16 Might. Power levelling gets you there in 4 Turns with 9 MP to spare on other expenses along the way. If you get 1000 worshippers by the end of your first Turn, you can cut it down to 3 Turns. If we lower the limit to Level 5, then we reduce the time it takes by another Turn. Although the time taken by a Level 6 threshold seems adequate (especially considering that Turns should be faster).