My brother works for Disney perhaps I can send his toxic masculine @$$ down the hall and confirm these Black Panther rumors and also work off all that Thanksgiving turkey he ate at my house...
Note: My brother looks nothing like Blade but he was one heck of an athlete back in the day... Pretty MF!
Doom... Namor... If you are part of the greater Marvel universe it's a shared enterprise and just like Captain America: Civil War your franchise can be used to launch other intellectual property regardless of how fans feel about it!
Black Panther jacked the narrative in Civil War and then went on to 1.3 Billion Dollars so if Doom or the Fantastic Four need an assist into the MCU after what happened with their other 3 Fox produced movies then so be it!
Fox lost two Johnny Storms to the MCU in Chris Evans and Michael B. Jordan so be a good sport and give to the needy...
I don't see Coogler doing a Doomwar in the same way that Mayberry did because long winded pyrrhic victory speeches are not the MCU way these days!
Thanos got his comeuppance in the end so Doom could get bodied for his transactions or be a recurring sidekick type like Loki popping up every now and then!
Besides, what could be worse than Killmonger beating you down in front of your girl, your moms, your sister, your best friend, your peeps and then tossing you off a waterfall like discarded trash?