What to do before the May 28 update
Gearbox has already pointed to a May 28 update with Raid Boss 2, Subjugator and Thol the Invincible, new rewards, UVH level 7 and more balance changes. Do the boring prep first: finish the main mission list, unlock endgame travel points, bank one strong shock weapon, one corrosive weapon and one boss-melting setup.
Should you chase Mad Ellie and bounty weapons now?
Mad Ellie and the Vault of the Damned is already live (and the C4SH Vault Hunter shipped with it), so it is safe to clear it for access and first-copy rewards. The May 28 balance pass can still change which farms are best, so avoid spending rare upgrade materials on a weapon you would hate to replace.
DLC price and edition questions
If you already own a deluxe or super deluxe edition, check your platform entitlement before buying a separate pack. If you only care about one story pack, buying individually can be cheaper. If you play every event and care about cosmetics, the pass-style bundle is usually simpler.
Level cap and weekly events
UVH level 7 is the confirmed watch item for May 28. The May 21 to May 28 loop is live weekly content rather than a balance patch: use it to stockpile options, check the active Big Encore and Wildcard targets, and verify Maurice's Black Market location in your own run before building a farm route around it.
Sources we trust first
Start with official posts from Borderlands / 2K and major update notes from Borderlands Support. Then cross-check Reddit farming threads and gameplay videos for what actually happens in game.