I just hope some of the up and coming talents can breakthrough and win me over. I remember when Agassi retired, i had a bit of a tennis crisis until i found Nadal and started rooting for him and that got me fully involved again lol. I think Thiem might be one of those guys for me, i just think he's so talented and on the brink of something big.
I don't see any of the current generation of youngsters challenging the big 3, in a way they're unlucky - Nadal, Federer and Djokovic are just that good. Even Djokovic, taking into account historical competition.
I haven't seen much of Zverev but his win over Novak in the ATP finals was a good one. The problem for the up and comers is that the big three know how to peak at the Slams, that in itself is a skill that needs to be mastered.
Djokovic is going to be very difficult for anyone to stop next year. Nadal's at risk of potentially being overtaken by Novak in the next 1-2 years (in terms of Slam count) if he can't pull out victories at non-French Open Slams.