Yes, hints have been dropped that the mobile app is under redevelopment. As usual, however, there is no timeline for release.
See, for example: Matter Support Released - #15 by bravenel
FWIW, I rarely use the mobile app. I have it set up only so I can do presence and notifications, neither of which requires actually using the app after that. For day-to-day control, I prefer automations to avoid anything manual if I can, but there are other options like integrations with Google, Alexa, or HomeKit/Siri for control by voice or the Apple Home app. Hubitat Dashboard is also built-in and gives you more control over more control over the appearance and can work with almost any device, and there are third-party options like SharpTools (also built-in, and many others you can do with custom code).
Dashboards are just webpages. You can get the URL from Apps > Hubitat Dashboard > (your actual dashboard), then use that without needing to use the mobile app to get there at all. Bookmark it, add it as a "web app" to your home screen, or whatever you need to make it easy -- I do understand that the app can be easier, but this is what many of us did before the app existed at all (there was such a time). 
For these, I think you'll need different a different solution. Using Pushover instead of the Hubitat mobile app can help with notifications on the mobile device side, or you can share a notification device between your hubs if they're on the same LAN using something like HubConnect (I don't think Hub Mesh works with the mobile app device) or similar options. A similar solution could help with geofence, or again, you could again use a third-party option instead of the mobile app (OwnTracks or an Apple Home or Alexa automation, for example).
