Questions for GW1 reforged on steam

Hi I only ever tried some gw2, never played gw1, so I was surprised that a new Guild Wars Reforged was released on steam. I've got a few questions regarding this that I look for answers to.

Is this a remastered version of the original guild wars 1? What content does the base game include and does it have necromancer class?

is it solo and/or does it have multiplayer?

Is the story a prequel to gw2 cause I'm looking to get back into it since I'm thirsty for some mmorpg action.

Last question. I checked the steam page for the dlc for the game. One of the dlcs is called "Eye of the north" but apparently people are complaining that it doesn't work? If I wanna play the game, I kinda wanna play the dlc too, so what do i do here?

Thx for taking your time to answer.