Edit: Worldwide only 47 guilds killed LK25 last week.
Ok, now on topic
dps pov 25man (obviously all adds and bosses have more health and hit harder so not gonna post that about every boss)
Lord Marrowgar: need decent spreading now in p2 since he spikes 3 people during bonestorm twice, for the rest the encounter felt the same as normal
Lady Deathwhisper: huge step up from normal mode
p1: adds spawns alot faster, 3 MC's instead of 1
p2: she is untauntable so u need tanks to fight for aggro for the entire phase, still 3MC's, ghosts now explode for ALOT more and the explosion range is massive, adds keeps spawning but only from 1 side at a time
Gunship: same as normal mode except if u get hit by a rocket, u get a small knockback and 1 more add spawns from the portal on your ship