the nippon link: "Prime Minister Fumio Kishida, also leader of the ruling Liberal Democratic Party, and heads of five other political parties attended an event held at a Tokyo hotel to mark the establishment of the council, Reinventing Infrastructure of Wisdom and Action, dubbed Reiwa Rincho."

https://www.reiwarincho.jp/about/summary/
令和国民会議（略称：令和臨調）
Reinventing Infrastructure of Wisdom and Action (ReIWA)

I think it's ok to mention the year it's founded but I'm not a  fan of just adding the year without explaining what it means. ( i.e. I'd be ok with (national council on structural reforms\; est. in 2022)
(but we don't normally include the founding year of things like this in the glosses)

@@ -12 +12,3 @@
-<gloss>Reiwa Rincho (national council on structural reforms, 2022)</gloss>
+<gloss>Reiwa Rincho (national council on structural reforms)</gloss>
+<gloss>Reinventing Infrastructure of Wisdom and Action</gloss>
+<gloss>ReIWA</gloss>

Trimming. May be ephemeral.

@@ -12,3 +12 @@
-<gloss>Reiwa Rincho</gloss>
-<gloss>Reinventing Infrastructure of Wisdom and Action</gloss>
-<gloss g_type="expl">national council focused on structural reforms</gloss>
+<gloss>Reiwa Rincho (national council on structural reforms, 2022)</gloss>

https://www.reiwarincho.jp/
https://www.tellerreport.com/news/2022-02-28-to-launch-"reiwa-rincho"-discussing-the-creation-of-a-post-corona-society.HkH9c7mql5.html
https://www.nippon.com/en/news/yjj2022061900264/

In the news.