i am looking through recruits for next year and have a question. . a guy with four highs and three averages, a junior(juco), 94 work ethic.  is he likely to be able to max out by the end of his senior year?

Depends on your practice plan and what type of highs those highs are? I could see around 20 points in a single category.

If you play him enough minutes, then I think so. If you sign him, try to RS him. 

well, don't know the type of high yet.  just looking around in-season with my leftover recruiting money for fss.  but anyway with a 94 we he would probably improve allot even if he didn't max out, i suppose.

also, does we effect how fast iq gains are made?  never really checked before myself.

IQ gains are based on WE and HS GPA. If both are high, he learns faster. If both are low he learns slower. I have posted Iguana1's famous chart below. It is still practical and reliable. I am almost certain it is based on having 20 minutes of practice time in both O&D.

Iguana1's BBIQ Practice Minute Chart: These are the ranges
I've found based on the 4 seasons since the iq grading has
changed.
The number on the left assumes a "fast" learner. WE of 80 and
GPA over 3.2. The number on the right is for a slower learner.
WE around 40, GPA under 2.5.
Of course there are extreme cases on both ends. I had a player
with a WE of 11 that took about 20% longer than the second
number.

• F > D- 50-75
  D- > D 50-75
  D > D+ 50-75
  D+ > C- 50-75 total F > C- 200-300

• C- > C 100-150
  C > C+ 100-150
  C+ > B- 120-200 total C- > B- 320-500 total F > B- 520-800

• B- > B 290-400
  B > B+ 290-400 total B- > B+ 580-800 total F > B+ 1100-1600

• B+ > A- 375-500
  A- > A 575-775
  A > A+ 450-625 total B+ > A+ 1400-1900 total F > A+ 2500-3500

He won't max out, but he'll be on the cusp. Based on the guys I've had at 90+ WE, expect about 150-200 improvement in total rating points.

He may not have even 150 total ratings points left below his potential, much less 200.  That said, it is an excellent WE and you should be able to concentrate your practice minutes, so 20-30+ points of growth in high potential ratings should be not only possible but probable.