I've see proposals like that for new statistics. My main flaw with OPS is that it is not quantifiable. Like, if one player has an OPS of .700 and one has an OPS of .900, what does that mean, bedsides the .900 is better? Re-arranging the ratio of OBP to SLG does not fix this flaw.
Really, one thing that might help is a new statistic calculated by Total Bases/PA. Or better yet, (Total Bases + Walks + HBP)/PA. Sort of like OPS, but without the lack of a common denominator. I think I will call it HE, or Hitter Efficiency.
Although I am open to better names