In order to be able to access all of the new content added with Witch Queen expansion, you’ll need to improve you Light level to at least 1500. But that is the minimal requirements, you will need something around 1550 Light level to feel comfortable doing any endgame activities. We can help you reach that level without spending countless hours on grinding and farming gear.
ETA for the boost will depend on what Light level you choose.
Power Level boost rewards: