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To make things work long term there needs to be a community involvement in the project from inception and continuing with the maintenance and ultimate replacement. If I have read the message correctly you are planning to install a borehole and pump but there is now the thought that filters will be useful in a much larger area as an interim measure.
In common with others I have my doubts about the effectiveness of the filters as a parachute solution where they are suddenly introduced. If there is a local organisation that has the experience of promoting and supporting their use and they think that they would be useful then I would say great go for it. However it seems to be that this is a case of a solution seeking an application rather than the other way around.
Once the borehole is there the water should not require filtration although I am not sure how this will work for outlying villages. However there are a lot of factors to plan here such as the location and whether this provides a good supply and is easy for all to access, the type of pump and how it will be maintained. These need input from the local community.