I don't know who you played as recently, but I suggest India or Western Africa as the most dynamic and interesting regions. I completed 2 European games in a year, one of them for the OP absoutism stacking when it was released with the sole purpose of One Tagging as early as possible. In the meantime, I completed about 5 African games, and even more in India/Indochina. Europe can quickly be boring because of how slow everything is with that insane AE and these far too stable powers (which is why everyone flees Europe by spreading no CBs around the map). If you mostly played in Europe, I can perfectly understand the feeling that the game gets boring. Try to open up to new areas.
Then again, I assume you mostly played in Europe because that's what people do, but giving us more infos on who you played as might help.