Harry Redknapp says his midweek trip to Asia to meet QPR owner Tony Fernandes was productive on a number of topics.
West Ham manager Sam Allardyce has hinted Ravel Morrison’s future could be resolved in the January transfer window.
Seaborne has won three and drawn one of the four matches he has played in since making the temporary move to The Valley.
The 25-year-old was forced to sit out the final match of his original loan spell, last Saturday's 2-2 draw against Brighton.
But Seaborne will get the chance to extend his unbeaten run in the Charlton team after a fresh deal was struck.