Important to note that Relic (AoE4) is NOT among the participating companies at E3.

This makes me think that they will concentrate on the DE editions for E3 and possibly leave AoE4 for Gamescom in August.

You can see participating companies if you scroll down on https://www.e3expo.com/

LE: at the same time it is enough for MS to be listed, they own the franchise after all.