Other Interactions From E3
E3 did not just end at the meetings I had at the various booths with a specific game or objective in mind. Some meetings just happened spontaneously. There were a few discussions with developers, not necessarily solely of games but hardware as well, that seemed to be quite promising accessibility-wise.
Individuals from HTC, as well as those exhibiting Dragonball FighterZ, Assassins Creed: Origins and Forza Motorsport 7 all seemed at the very least willing to pass on my information to higher-level individuals from the companies concerned (i.e. people directly involved with their games and products).
Hyperkin and Cryengine were more forthcoming and have engaged in direct conversation with me since E3. However, even without responses from every party involved, this does demonstrate that if developers are engaged with in person, the opportunities can potentially go far beyond what was thought possible before interacting with them.