1. Portugal, will probably be my first campaign (or several), just like it was in EU4. Should make for a relatively chill campaign isolated from most dangers, allowing me to learn economy and scale for the first 100 years or so, be the first one to start exploring and form a colonial empire. Maybe start expanding into North Africa when I'm feeling brave enough (and hopefully NOT getting my king and his entire army stackwiped, leading to falling under a union with Spain, as I think happened historically).
2. Muscovy > Russia, should be an interesting yet challenging experience given their significantly weaker starting position compared to EU4. Centralize control over the other tributaries, overthrow the Yoke when the time is right, work towards establishing a Tsardom from sea to sea. As a long-term goal, maybe play around with seeing how much Control I can extend across the vast overland empire, and how stupidly rich I can get via a mostly raw goods-based economy?
3. Somewhere in Japan for sure, definitely starting as a Daimyo, not sure which really. Heck I'm not even sure who the options are. Probably not Oda if they even exist at the start, too overhyped. Maybe if there's one who happens to share the same namesake as one of my favorite KanColle shipgirls? Not really sure how the building-based early-game plays up until Sengoku (no intention of doing an early "rebellion" to become landed even if that option survives to launch day). Then, unite the islands, work on centralizing control for a bit, and the sky's the limit. Subjugate Korea? Try invading China in their times of weakness? Go a bit more ahistorical and try colonizing the SEA islands or the western coast of the New World? Who knows? I just hope Paradox fixes the issue of the Black Death wiping out half of China and Japan before the game comes out, though.
4. Brandenburg > Prussia I suppose? I guess I'm already kind of running out of ideas at this point, maybe not a good sign. Pretty self-explanatory tbh, anyone who's played EU4 has probably done the "Prussian Space Marines" meme at least once.
5. Ottomans. Sometimes it's just fun being the bad guy, y'know?
6. Florence. Was my first Italian state in EU4, too. I'll admit most of my interest in the state comes from Assassin's Creed 2. But it'll be fun to see how rich and "tall" you can grow as an Italian republic in EU5's economic system.
7. Greenland > Vinland. I guess this one's pretty inevitable at some point. Very challenging and extremely slow start, reliant mostly on slow buildup and begging your fellow Scandinavians for extra pop. No Norse unfortunately, but a Scandinavian New World state forming before the typical colonizers get there will certainly make for an interesting experience.
8. Something in India, haven't studied the map yet to decide who. Will have to wait until the final release's balance to know how feasible it is, but a challenge of uniting the entire subcontinent and exploiting the great wealth of India for India, rather than the British crown, sounds cool. India always made for a fantastic production-based economy in EU4, I can only imagine this will be even better in EU5 with the increased granularity of Locations and a detailed Population system. Again, hopefully the ahistorical eastern spread of the Black Death gets fixed first though.
9. Norse revival as Norway or Sweden or whoever it was who starts with the small handful of Norse pops. No idea how it'll work or how feasible it'll be, but as long as it's still possible, you can bet that I and many other Paradox gamers are going to do it at least once. A goal of forming the North Sea Empire seems about right - maybe with Normandy (not Norway durr), Holland, and the Irish as subjects?
10. England > Great Britain > 13 Colonies > USA. Took me a while to remember this one. EUV will finally have something that I've wished EU4 had for years - the ability to release and PLAY AS a colonial subject immediately upon creation, instead of being forced to make your colonial nation fully independent just to be able to play as them without non-Ironman-compatible tag-switching shenanigans. Being able to grow and prosper for a while under benevolent English rule, then fight a properly bloody war of independence when that penny-a-pound tariff on tea starts feeling a little too tyrannical, feels like exactly the kind of long-form campaign I've been waiting for.