Lucasfilm has revealed that autograph and photo op tickets for Star Wars Celebration 2019 will be on sale this Wednesday 2/13 at 12 noon PST! See the full announcement here.

The article also reveals three new signers attending Star Wars Celebration 2019:

• Ian McDiarmid (Palpatine from the prequels and ROTJ)
• Brian Herring (Puppeteer for BB-8 and others in TFA, TLJ, Solo and Rogue One)
• First-time guest Mark Dodson (Salacious Crumb in ROTJ)

You can see all the guests currently revealed at this link