Valve used to do ARGs for some of their major releases. It’ll be kinda sad if there’s just not enough energy around for people to figure out their puzzle pieces here.
In before HL 1 & 2 remaster disappointments. Or just absolutely nothing happening, just like all the previous copium rumors. I think I stopped caring back with the recorded soundtrack rumors, which already feel like an eternity ago at this point.
To be honest, I hope they never do it. Because at this point it is absolutely impossible that it can live up to the hype. It will be a disappointment no matter what.
They can do other games in that universe though. They will work. I actually believe they will work better without HL3 existing.