You mean you want everything up to and including the shape of a horse on the battlemap (from 5ft by 10ft to 10ft square) and a significant part of the skill list to change?I want tweaks, not revisions. I'm ok with adjustments to Sharpshooter and Great Weapon Master, a clarification to the stealth rules, etc... however, I do not want them to massively overhaul the game. Essentially, I think they hit roughly the right balance going from 3E to 3.5E. Repeating that level of adjustment would be a good target.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.