The logistics alone make a permanent London team on improbability.
Then add in all the extra expense involved to this new franchise.(Travel,Facilities,Taxes,flying in workout players,etc)
Then add in the disadvantage they will have just in personnel.
How will this team lure the top free agents?
Some will simply refuse no matter how much you over pay them.....many will not want to live there half the year.
Others may accept a contract.....but the team will have to overpay in a huge way.
Then the schedule makers will have to make huge concessions(so will the rest of the league) to accommodate the travel issues/scheduling.

Then you throw in all the reasons why it won't be "The Jaguars" even if they manage to figure this all out and It's such a reach there is no sense even talking about it.

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