Should I wait for WPMU/WP to merge?

My main concern to switch over to WPMU for all of my sites is dealing with images path which I had been using a WP theme that worked with timthumb then switch it over to WPMU. It required to reconfigure the path of each post to link with each image.

If the WPMU and WP merge in next couple of months, it will be a good idea to WAIT to save hours and hours of our tasks to modify path of images for hundreds of posts in DB and other areas such as plugins that really designed for WPMU not WP.

Tell me if I should worry or not to move forward onto WPMU platform for my sites then upgrade them into WP 3.0.