The public roadmap is a good idea but highlights how stale the product has become. https://github.com/heroku/roadmap/issues Only now researching adding Cloud Native Build Packs and HTTP2.
This will reaffirm for many the sense that Heroku is being dismantled from within. Feature sunsetting and removal of a free on-ramp doesn't help.
If you're looking for a production alternative to Heroku checkout Northflank.
https://northflank.com/docs/v1/application/migrate-from-hero...
https://northflank.com/heroku-pricing-comparison-and-reducti...
Comprehensive support for stateful, ephemeral and scheduled workloads. With a generous free developer tier including build, runtime, databases and cron jobs. Always happy to help teams migrate from Heroku.
(I'm a Northflank engineer + co-founder)