Larry and Sergey still holds more than 51% of voting stocks. IMO, this is the only thing that matters unless they delegate all the decisions to Sundar. Although I expect "other bets" to be forced to evolve into more realistic businesses but no radical structural changes.
And another thing to consider is that a significant portion of Alphabet's value already comes from potential growth of "other bets" (e.g. Waymo). The major driver of digital ads' growth has been cannibalization of traditional media ads budget. This is no way sustainable over the next decade so the growth will be eventually saturated. Unless Google can find another strong driver (Maybe Cloud?), it's pretty natural to keep investing "other bets".
And another thing to consider is that a significant portion of Alphabet's value already comes from potential growth of "other bets" (e.g. Waymo). The major driver of digital ads' growth has been cannibalization of traditional media ads budget. This is no way sustainable over the next decade so the growth will be eventually saturated. Unless Google can find another strong driver (Maybe Cloud?), it's pretty natural to keep investing "other bets".