If it is not possible to display how long current set of queries is being executing (in a status bar next to word "Executing..." - I don't see quite honest why it is not possible), how about to show start time in an output window saying when query was sent to execution. Right now it shows only AFTER query has returned a result which is some what becomes irrelevant.

I come from MS SQL and it is handy to know how long any query is executing without profiling it.