I think the "Assign New" option should be permanent for the scientist with a research queue. Currently the issue is that I tend to setup a research project, mark it as "(N)" (to assign new research labs) and then also add queued projects to the same scientist. However, as soon as the first project is completed and new one is started from the queue - (N) is removed.
I was thinking on this yesterday also. Be great if there was a way to keep your research queue active when your researches die also and maybe nominate a backup scientist.
Its a pain to have to keep building back up the queues when somebody dies. Although the recent colour highlights have been very helpful when trying to figure out who died.
I wonder if you added a numbering system to the scientist list similar to the standing order numbers.,
Create a project and assign a scientist, build the queue then arrange the remaining scientists in order of preference. That way when someone dies the queue just keeps going.