Possible response to "cya"

• Equivalent of "cya" in a text
• "So long," for short
• Texter's sign-off
• Texter's "Chat soon"
• "Until next time," in IM
• Texter's "Ta-ta!"
• IM signoff
• Closing letters
• Texter's farewell

Wiktionary Word definitions in Wiktionary
init. (context Internet English) talk to you later.