I am curious to know what is really better in terms of value for the money. Bonechill Bow Potency lvl 31 or Mythic Bow.

Mythic bow dmg/dps only goes up a few points higher than the Bonechill Bow of Potency. I am torn on whether to keep using my current bow or drop lots of gold down on a Mythic Bow. I do realize that hp, dmg %, dex, etc all go up when going to the Mythic bow.

With a possible level increase coming soon will mythic items be given stat boosts to still be better than newer equipment?

Any suggestions would be greatly appreciated.