Although I do think this is another commentator-hyped issue like big bats, here goes:
Drinks breaks/glove swaps/etc to be taken at drinks breaks only - 15 overs without a drink or a change of gloves isn't exactly a hardship for a professional batsman! Bowlers can get a drink in down at fine leg like they always have done, drinks at fall of wicket maybe.
5 runs per over short at the end of the innings, with allowances made for delays like long reviews etc.
Bowl the bloody overs! Pretty standard in England at least to see the players walking off in bright sunlight at 6/6.30, why go off if the day isn't finished?