Do we have confirmation from Blizzard that Gnomer boss kills will provide reasonable XP for levelling in the manner that BFD does in P2?
I believe a lot of people are assuming it will act in the same manner, but has there been an official statement on the manner?
spells indicating 10k xp from first 4 bosses and 15k from last 2 are on wowhead
50% buff means gnomer gives ~105k xp if you dont die on any bosses. which is basically level 40–>41.10
allegedly ofc
Unless they nerf the last 2 bosses, I don’t really see gnomer being nearly as popular for leveling as BFD is.
Turns out, yes XP. But not from final boss.
I suspect the final boss is bugged to not give xp since you don’t leave combat after it dies.
I went from level 42 to 43 clearing a gnomer run with a sleeping bag buff, and that’s with the last boss not providing exp. 
Bosses seemed to give between 15k and 23k exp per kill.
15000 from the first 4 and Menagerie with 22000 from what I saw.
The last boss DOES NOT YIELD EXP. So unless you need a piece of gear from the last boss do not bother.
You cannot exploit it with 1 rested XP point you can get by laying out a sleeping bag before the boss pull but can still benefit from the added 3% from the Sleeping Bag buff.
Also, apparently as I found yesterday Gnomer for XP is practically redundant with how incursions work.
Easily leveled to 50 in under 6 hours after messing around with them 