I don't know, the UI is good. I like the "Ice Cream Sandwich" look, honestly. I wonder if the time of an open-source project is best served by re-doing the UI just to keep up with trends.
If i ever pick up a librephone, pinephone, or something that can be switched to another OS, i'd like to try it again, even though i don't like using phones in landscape mode anymore. Maemo raised the bar so high on landscape orientation user interfaces that everything else is a joke.