Does ENVE typically release new wheels on a set timeframe? E.g., new wheels come out every [spring] so if you want the latest, you should wait till then?
Thinking about upgrading my Bontrager Aeolus Pro 37 TLR wheels (link for reference) to the ENVE SES 4.5 (link). Based on light research, it looks like these wheels last had a major upgrade in May '22, and a minor tweaks (new hubs) in 2024. Does that mean the SES line is set for an update soon and I should hold off?
I would say it’s very unlikely that Enve makes any changes in the next couple of years to their road lineup
For example, the 4.5 AR was released in 2016. Then it got some minor updates in 2022 as part of Enve’s overall shift to wider and hookless rims. So their flagship wheel went six years between updates and even then it was a minor one
Very helpful - thanks!
Welcome to the forum @tjeffs! 
It’s going to be hard to beat those Pro 37 TLRs in my opinion. 
I used to have a set but sold them. 