Speaking for Sarna (only) here, yes this is possible from a technical standpoint.
However, regarding content presentation on Sarna, we still haven’t agreed on a policy or even unified approach to which image goes in the infobox. There is a vocal faction advocating for using the first image art that was used to introduce a given unit, because that image will never change. Using the latest or nicest or most popular or whatever other criterion means we'd endlessly chase down new images for literally thousands of articles, which I consider unworkable and thus, not desirable.