Heroes suggestions

Magic
A small standard deck library for new players  
 A small pioneer deck library for new players  
 Land bundles for sale for new players who need land to build with. 
   
  

General
Lockers, either more permanent lockers for organisers to leave items at the shop or coin operated ones to leave bags in for game evenings  
   
   
  

DnD
Remote control lighting 
 Speaker system for ambient sounds  
 Projected table top to help with more digital campaigns 
 Virtual table top like foundry where groups can set up campaign 
 A shop copy of core books to hand to quickly look things up 
 A few intro nights for both DMs and then groups