With 11 goals in 21 games, continuing that rate we would finish on 20 and equal the lowest ever in the Premier (Derby County 2007–08). I would expect us to get a bit more than that and avoid this record at least.
However, our own lowest ever total in a season going right back to 1888 is 36 (1969-70). No way are we going to score 25 goals in the next 17 games.