I like the idea. We have the option to help or not, we have to actually sail there to defend it, it would certainly be a challenge.
With a little tweaking and a twist on their plot, I could definitely see this in game.
Have the EITC turn on Roger! Throughout history, allied forces or always going back and forth from enemy to ally for one reason or another.
Why not make it interesting and have Beckett hiding his own secret agenda like he usually is.
I'd love to see him double cross Roger and leave JR resorting to asking pirates to side with him and help. Who know, maybe ye could get a cool undead option lol.
Idk, just throwing out ideas