If it wasn't for the fact the finale could suffer from the show dwindling in quality, I wouldn't mind it going on for a really long time. If it got to shit, I could drop it and come back for the finale, or maybe it would be like post movie spongebob, where it goes to shit, but there's a few acceptable episodes. There's only one risk, and it'd be a big one, if it went too much longer the series finale could fucking suck and give no closure. Gravity Falls just barley gave me closure, but it wasn't because the quality dwindled from going too long, it was because it was rushed. It was very fucking one-note. Given enough time, RS would be the same way.
JG is a cool guy, but no one can keep a steady show for 20 or so seasons, with almost 40 episodes each. I have to commend him for keeping my interest this long, I worried when season 5 was announced that something was going to go wrong, a new writer, JG maybe going like Stephen Hillenburg, anything. I'm glad it stayed more or less the same.
After January my life will have a void that can't be filled, but it's my fault for getting so attached to the show for 6 years. I'm more attached to this show than Gravity Falls, and it kept me on edge until after A Tale of Two Stans, I was a part of the theorizing community on here, I was pumped for almost every episode, but it never gave me the relaxing charm RS has, at least not after Season 1 (GF) but that's not necessarily bad. I love plot and action, but being able to just relax with these characters is nice too. It's a shame S1 of GF had a few obnoxious ones, like The Deep End. Mabel's story at least.
Anyway, I could see this show going to 12 exact seasons, 40 episodes each like all the seasons before this one (excluding the first 2). After that, things would show up. Bad things.
I'll miss it, I really will, and I know J.G. wasn't all out of ideas yet, it showed. Fuck man, I wish more people liked it on here, it sucks being one of the few who actually feel something for it.