Originally Posted by
Cracked
To add to the second poster, max base ilvl of gear is 865 at +10, however, it seems the higher you go, the higher the chance to warforge gear is, but so far that is anecdotal evidence and not confirmed in any way. The bosses can be tough, but they are nowhere near mythic raids in difficulty, there are no new abilities from base mythic up, though certain affixes do interact with different bosses in different ways, so the difficulty is variable.
More so than gear, class setups are extremely important in mythic+, especially healers are very unbalanced and again, depending on affixes, some tanks are infinitely better than others.
No leaderboards as of yet, the only recognition that's there is realm first for +15 that will likely be taken by some nonraider group in the second week of emerald nightmare.