Hey! So sorry I didn't see this / respond sooner. Blaustoise (another Rioter) responded to the reddit version of this thread so I just wanted to copy-paste his response over here:
Hey friends!
I posted in another thread about Bard chime spawns (sorry... I see "chimes" or "meeps" and I'm sucked into the post, can't help it), but this was an unintended change. My current understanding of the issue is that we only put back the smite charge time 10s instead of the full 15s. We'll be fixing this so that the initial smite recharge time will be 15s earlier corresponding to the camps spawning 15s earlier.
Hope that helps. In the meantime, give a juicy leash for your junglers. Especially if you have an Ekko in your game named Riot Blaustoise :D
**EDIT: **Forgot to mention, I'm checking in on 3 champion-specific spawn changes (Bard chimes, Kindred Marks, and Skarner Crystals). I'll update when I know more.
EDIT 2: It looks like we'll be updating the champion-specific spawns to reflect the 15s camp/minion changes.
EDIT 3: Hey I also wanted to quickly let you guys/gals know that I'm just a messenger of these changes. I work on the player labs, surveys, and analytics surrounding gameplay so I support these teams, and I'm constantly amazed by the amount of effort and passion that they put in to try to make this game even better for all of us. Preseason brought so many changes... and we know there are issues, bugs, imbalances (cough graves cough cough), and we're gonna tackle them the best we can. Thanks for your support and patience, I love y'all <3 <3 <3
** EDIT 4: **The scuttle crab spawn (and corresponding Kindred mark) is staying where it is to line up with the Dragon spawn.
**TLDR: **Brave designers are working deep into the night so that I can have 3 chimes before laning.
IOW: We hear you guys, we're on it!