Rune
Once A Fool
Pretty sure there was a warlock in one of the packets (along side a sorcerer)*. The sorcerer became more draconic as it leveled. The warlock traded beauty for power. I based a character on that warlock (and Tracy Ullman’s character in Robin Hood: Men in Tights) that was a halfling cook named Pretty Polly. She’s been recycled many times since, sometimes as a gnome, sometimes as an NPC, and not always as a warlock. But the original was a lot of fun.Bards and sorcerers did both show up. The warlock never did though.
The bard was towards the end in a couple of the playtest packets but the sorcerer only showed up once and it was fairly early on. It was awesome though. Had a unique mechanic and was quite different then the wizard. It wasn't fully developed but I liked it a ton more than what we ended up with.
A lot of the playtest was great and to be honest, a 50-50 split of Playtest/Final would probably be my "ideal" 5E incarnation. It's pretty obvious that they significantly dialed back much of the expanded options and choices in the final release.
* That was a long time ago, however. I will concede that it is possible I am misremembering and both were differing versions of sorcerer.