I remember getting a similar poster when I got an NES game. Not sure if it was inside the box for Hollywood Squares or Classic Concentration(I don't think I saw it in either WoF or J!). IIRC, not only did they "claim" that TPIR was "comming soon" but also Double Dare(which I've read it to be nothing more than vaporware at that point).
I saw the mentioned GameTek poster above a few weeks back, but really didn't want to put down $20 on it. I found it elsewhere on eBay for about $5 shipped as part of a complete Jeopardy! NES game and box. So, now I have a duplicate game but got the poster for less.
The back page of the instruction manual for Jeopardy! also shows box art for TPIR and Password, with the Password art being a shot of the contestant desk from 80s Pyramid (that has been mentioned on here before).
I also bought another GameTek poster on eBay for about $3 shipped which features Wheel, J!, DD, Wheel Jr, J! Jr and Hollywood Squares boxes and screenshots. I am going to frame them both and put them up in my home office. I think they are pretty neat.