It is highly unlikely password reset functionality will be rewritten by then. We don't plan to do any major changes like that until we've Symfony components implement to reduce our code development overhead. We'll be starting implementation of Symfony components late December or early January at its earliest. So unlikely to see that feature until probably second quarter of next year.

CB 2.5 primary focus is to be Joomla 4 compatible.

As a temporary solution navigate to Extensions > Plugins and edit "Community Builder System plugin" then set "Redirect URLs" and "Rewrite URLs" to "Disable". You can then use Joomlas password reset form, but please be sure you have turned off Joomla registration otherwise users could bypass CBs registration process by using Joomlas.