RhettroI don't think so. Smash bros is just such a house-hold name, and so many people grew up playing it that when they got older they kinda came back to it, and the good mechanics continue to draw in players. The difference for tf2 is that it's not a game that everyone plays, so it's impossible for it to rebound on anywhere near the same scale.
The number of people who own TF2 was estimated at over 20 million in 2014, the most recent data I can find. And yes granted, some people played for 10 minutes or less and will never go back, but that number shouldn't be underestimated.
Maybe we shouldn't be using the word REBOUND here - maybe rebirth is more appropriate.