The Guild Wars and Guild Wars 2 dev teams have updated the Hall of Monuments FAQ with information about how the Guild Wars 1 HoM rewards will work when Guild Wars 2 goes live.

Q: Do players who obtained the title God Walking Amongst Mere Mortals in Guild Wars get anything special in Guild Wars 2?

A: Yes, the maximum rank of the God Walking Amongst Mere Mortals title will be paid forward into Guild Wars 2. If you have earned this title on any of your Guild Wars characters, you will be able to have any of your Guild Wars 2 characters wear the title as well. GWAMM is completely separate from the rewards that you can see via the Hall of Monuments Reward Calculator.

Read more here.