My only concern is what Chris said and there'd be a ton of focus on what Penta is doing and why he's not over there with him, but I'm not staunchly opposed either way.
As far as history goes, you know no one loves a feud with history more than your boy, but WWE doesn't typically mention too much outside the bubble. WWE has gotten better with occasionally name dropping another place someone worked but they still don't typically work that into stories so at most they'll acknowledge their sibling status, but I doubt much more lore from before WWE is added.