Would Britain have accepted the charter without the Blitz?

How much of the Atlantic Charter would Britain have accepted if it were not being bombed?

Most of it, though Britain would likely have sought vaguer wording and more flexibility over the timing of self-determination and decolonization.

Britain would probably still have accepted most of the declaration because much of it could be endorsed in principle without immediate enforcement. Similar ideas already appeared in British war aims and public policy. British negotiators might have made the wording even vaguer, especially around self-determination. Their main concern was preserving time for a managed transition from colonies to dominions rather than being bound to an accelerated timetable.