to stick with 4.0 until now, then you’re probably not), one strategy is simply to wait until closer to the EOL date, and see whether the stable 4.1.1 ISO arrives in time. If it does, great! You can preform a clean install using that. If it doesn’t, then you haven’t lost anything. You still have the same choices you have right now. Just make sure you to leave yourself enough time to upgrade one way or another!