I play all type of content in the game (PvE DD, tank, healer, PvP dueling, brawler, bash, WW, HA, bomber, support, pure, subclassed builds), and I recently noticed that Necro is BY FAR the least playable class in the game at the moment. It was already close to that spot prior to subclassing, but with that update it got even worse. Literally the only 2 skills even worth considering to pick from Necro's skillset is Blastbones for PvP brawler/duelling builds and Colossus for bomber builds. Bomber builds are very niche anyways, and Blastboness isn't even that strong, Shalks and Bow Proc are probably better combo/delayed dmg skills anyways.
So, 2 okay-ish skills out of 18 in the class, the rest 16 are mostly useless, because for each one there's already a different and objectively better option in the game. This current state is extremely problematic because due to the corpse mechanic present in all 3 of the Necro skill lines, picking a single line from Necro to subclass makes it already suboptimal as you loose the strong corpse synergy; but on the other hand, a pure Necro build is objectively terrible in all types of content (across both PvP and PvE) as its numbers are simply too low to make it work.
If the Necro identity refresh will take a lot of time, as per the current timeline, I think the class deserves some significant buffs in the very near future at least. However, personally I think it should be the next class to be looked into thoroughly after DK. As things currently stand, all 3 Necro skill lines are one of the worst across all type of content. All other class skill lines in the game (especially in the world post DK update) will have at least 2-3 good skills and be competitive in SOME type of content.