Half-Life: Alyx Source 2 level editor is being worked on now

We have known about Source 2 for many years now, in-fact, games like Dota 2 and Artifact already use Valve's spruced up engine. However, the release of Half-Life: Alyx is a far bigger deal for Valve's

Source 2 - Valve Developer Community

Creating an Addon - Valve Developer Community

Here's Half-Life 2 running in VR, using Half-Life: Alyx's engine

Valve didn't want to make another Half-Life game before Source 2 was ready

Half-Life: Alyx Level Editing Tool Now Available - VRScout

Source 2 / Hammer 2 Documentation thread - Knockout!

Valve Hammer Editor - Valve Developer Community

Half-Life: Alyx Update 1.4 Introduces Postprocessing Editor And LUA Scripting, Opening A Lot Of Modding Possibilities

Half-Life: Alyx Level Editing Tool Now Available - VRScout

Half-Life: Alyx Source 2 level editor is being worked on now