Having seen the wonderful drawings done by Hood of the 16"/18" designs of the post-WW1 Capital Ships, I decided to see what a G3 might look like in a more traditional layout. I took Darth Pandas G3 design 2 as my base and gave it a kitbashing. The drawing turned out ok, and I have tried to not overgun the ship and kept the armament as the ship might have been completed with. The original G3's were cancelled and any material gathered dispersed or worked into other designs. At that point I figure the ships are at least 3 years from completion and that the lead ship would complete late 1925. A mid-life refit around 1935 would update some of the systems but a full rebuild would not be scheduled till 1942-43 so the ship would have entered WW2 in its 1935 guise. WW2 updates such as lots of 20mm then 40mm guns would be added, while its radar arrangements would increase markedly for as long as the ship survived and things like any aircraft handling arrangements would be beached to cut topweight.
This is the 1925 drawing.
HMS Indomitable 1935
HMS Indomitable 1942
HMS Illustrious as completed 1928