My two cents but I don't think you're giving NBA players enough credit if you think they're going to insist on major modifications to guest rooms. Everyone involved knows this is a difficult, unusual set of circumstances. This is the only path to finishing the season. While is bound to be some grumbling along the way, most will do their best to make it work.
NBA teams typically work with high-end hotels because of the quality of service, amenities, security, etc. Some elite players have clauses in their contracts dictating certain room requirements. But I think you're selling people short if you think they are prima donnas who are unwilling to live under lesser conditions in the midst of a play-stopping pandemic.
There will be plenty of new facilities added to convention space. They'll get workout equipment, practice courts, video tape rooms, media rooms, gaming lounges, etc. They'll have 24 hour food service and other amenities the hotels do not normally provide. Some players may be able to request larger beds if there is a physical need. But I don't think we'll see massive changes to hundreds of guest rooms or walls knocked-down.
