You will probably be very tiny...depending on how much muscle you have.
My first show I was 104lbs (5'4") and very tiny, wasnt as lean as I would have liked because my trainer didnt want to sacrafice me losing any muscle. After that show I gained 15lbs (too much fat

) then for my second show I was down to 108 and just those extra 4 lbs made me look SO much better...you could see all the progress I made!!! Its clear in my pics the difference with just those few lbs. Since my last show was in June, I tried not to stray far from my comp weight...I'm hoping to come in at 105 for my show in October, same size muscle as before but a little leaner
LOL!! Sorry for the novel...but basically, how much your off season weight will vary depends on how long your off season is. There is only so much muscle you can expect to gain in a given amount of time, so there is no reason to 'bulk' like crazy. After my next show, I plan on not competing until the end of next summer AND I plan on keeping my 'building phase' clean so I can minimize fat gain this time, which will make my next prep that much easier...I plan to keep my weight no higher than 120lbs but I'll have to see what my trainer says about that
btw..I'm tired, so I hope you got something out of all my babbling