The Character Origins UA makes Grapple and Shove an Unarmed Strike, which makes sense:
An Unarmed Strike is a melee attack that involves you using your body to damage, grapple, or shove a target within your Reach. Your bonus to hit with an Unarmed Strike equals your Strength modifier plus your Proficiency Bonus. On a hit, your Unarmed Strike causes one of the following effects of your choice:
Damage. The target takes Bludgeoning Damage equal to 1 + your Strength modifier.
Grapple. The target is Grappled, and the grapple’s escape DC equals 8 + your Strength modifier + your Proficiency Bonus. This grapple is possible only if the target is no more than one Size larger than you and if you have a hand free to grab the target.
Shove. You either push the target 5 feet away or knock the target Prone. This shove is possible only if the target is no more than one Size larger than you.
Taken with the Monk ability Martial Arts:
You can use Dexterity instead of Strength for the attack and damage rolls of your unarmed strikes and monk weapons.
Would this, at least until a UA for classes comes out, mean that Monks Dex replaces strength in the text of the Grapple and Shove option above?