From the Flyers' perspective, the most recent one is one that came from a Montreal Canadiens site stating that the Canadiens may entertain the idea of moving Cole Caufield, the future star of the Canadiens who could become their number one player to the Flyers for upcoming star Cutter Gauthier along with Carter Hart.
Secondly, if a trade of that calibre happened, there would be draft picks involved and more players because a mega deal like that would require enormous talent to move around.