Does it merit a comprehensive study? Probably. Will a merger ever actually take place? Probably not. The original Salt Lake Tribune article quotes both West Bountiful Mayor James Behunin and North Salt Lake Mayor Shanna Schaefermeyer as being skeptical of the idea. If you haven't got all 5 mayors on the same page, how will you ever get a majority of the residents of all 5 cities on the same page?
I see some potential benefits in the way of cost savings. I also see some potential losses in the proposal. One thing that I haven't seen mentioned in any of the news reports is what would happen with Woods Cross' water, which is currently not flouridated? A majority of residents of the other 4 cities all voted to have their water flouridated. A majority of Woods Cross residents voted to not have our water flouridated.
This also highlights a huge problem with the idea of a merger, the issue of losing our own independent voice and choice. If you were to take the votes of all the residents in the five cities and combine them as one city, the water in Woods Cross would currently be flouridated. In general, whatever the majority of the residents of the current city of Bountiful want, is what is going to happen. Without our independent voice and choice, our Woods Cross residents will be subject to the will of a majority of voters that currently reside outside our current city limits. What may be important to the leaders and residents of your city may not be important to the leaders and a majority of the residents of the combined city.