Like the names suggest, add a potion that makes the player levitate this could be done using the upcoming potion of slow fall brewed with fermented spider eye. Then to obtain the potion of glowing, use a spectral arrow or a glowstone block on an awkward potion.
Possible brewing sequence:
Potion of Levitation
Potion of Slow fall + Fermented Spider Eye = Potion of Levitation ( then gunpowder, redstone or glowstone dust as modifiers)
Potion of Glowing (2 possible sequences)
Awkward Potion + Prismarine Crystal (or Glowstone Block) = Potion of Glowing (gunpowder, redstone or glowstone dust as modifiers)
Alternatively the potion of glowing can be brewed by adding fermented spider eye with a potion of invisibility.
As for anyone worried about these potions being too OP in pvp. A simple solution would be to EXCLUDE these from the pvp battle same with other items that are excluded from pvp. (e.g. hoe, string, water breathing potion, etc.)