Game can go to 1080p during game and 4k in replays mode (I believe). Remastered is definitely worth the price if you an OG starcraft player! League is fairly active aswell considering, pubs games aswell and now we can have great latency on b.net if players don't live too far away from each others. Before, that was only possible on Iccup or similar servers with LAN Latency plug ins. If you can get games of TR16 - TR24 on low latency nowadays its as good or even better than LAN Latency on Iccup! Not possible though if you play Canada vs Peru for example, ping is way too high for that.
Anyway, welcome back!