New Army "Caliber Configuration Study"

[stanc]

The US Army has initiated a new 'Caliber Configuration Study' to support two new programs:

CLAWS - Combat Lightweight Automatic Weapon System
Envisioned to replace carbine, rifle, DMR, and SAW. Caliber TBD from pending CCS caliber study.

LDAM - Lighweight Dismounted Automatic Machinegun
Envisioned to replace the Medium Machine Gun and possibly the HMG. Caliber TBD from the CCS caliber study.

The way I read it, CLAWS is aimed at getting a cartridge with better performance than 5.56mm, but not so large, heavy, and powerful as would be necessary to match 7.62mm capabilities.

Since LDAM would replace the 7.62mm MMG with a weapon firing a bigger, more powerful cartridge, it appears that infantry units would still have two calibers, thereby ruling out a single GPC.

Does anybody else see it that way? Does this open the possibility for US and NATO adoption of 6.5 Grendel (or a similar cartridge)?