Future Heavy Weapons for U.S. Army Infantry?

New video on platforms being looked at by the army.

1. An "enhanced 81mm" with the range of a 120mm mounted on an Infantry Squad Vehicle for airborne/air assault

2. An XM25 type thing with dialable direct fire airburst grenades (the Precision Grenadier System or PGS)

3. And a combined replacement for the AT4CS and M141 BDM (the XM919 Individual Assault Munition or IAM)

Based on reporting by Soldier Systems: https://soldiersystems.net/2022/09/21/army-considering-new-capabilities-for-infantry-including-precision-grenadier-system-medium-machine-gun-mortar/