I feel it's safe to assume the 5th one will be the same as an epic skill (100x less xp). That seems the be the only other logical option given what we know about the 1st and 2nd time AND that the main stat skills are considered "epic skills" once you become a pilgrim.
From Davross' figures (if I remember the post from the previous page properly), that would be 750 hrs, 1000 hrs and 1250 hrs for the 3rd, 4th and 5th pilgrimage. Yes it is a huge pain, but you can minimize the time is takes if you build your character and equipment enchantments around nearly even main stat skills.
Yes it's not for everyone, but with a little bit of planning it can be completed by nearly everyone, if they desire to. I think we will see a lot more people who decide to do this once the arena season is over.
And as a side note for Glitchless, I think that logic dictates that it would be beneficial to you and your business if you helped to make this epic undertaking more accessible to more characters. There is a multitude of ways to achieve this, but please do not punish those who have already undertaken the challenge. If anything, those people should be rewarded (I'm thinking some hidden benefits for people who are doing a 3rd or higher pilgrimage).
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