I'd expect that improvements to Arrow, Feather, Parquet etc. will help lift lots of data communities including those of us who also do R. I'm really looking for

I'd expect that improvements to Arrow, Feather, Parquet etc. will help lift lots of data communities including those of us who also do R. I'm really looking forward to reusable in-memory dataframe structures like Arrow to be the foundations for R/Pandas-like data munging in lots of languages that aren't R or Python