By Matt Audilet As the NBA trade deadline quickly approaches, talks of some big-time moves are beginning to heat up. Last week, NBA insider Shams Charania of The Athletic reported that the Philadelphia 76ers were expected to make a run at Brooklyn superstar James Harden — and that the Nets were open to listen to trade discussions. Since then, the buzz around this potential deal has only grown. On Tuesday, Boston insider James Stewart reported an interesting wrinkle in this possible move. The deal could reportedly involve four different NBA franchises. “Heard the Nets, 76ers, Pelicans and Thund…