There are no upcoming Tirthankaras in Jain tradition. In the present cosmic age, there are 24 Tirthankaras, and the 24th is Mahavira. After him, no new Tirthankara is expected to be born in this age; another Tirthankara is believed to come in a future cosmic cycle, not in the current one.

The 24 Tirthankaras of this age (in order) are: 1) Rishabhanatha (Adinath) 2) Ajitnath 3) Sambhavanath 4) Abhinandannath 5) Sumatinath 6) Padmaprabha 7) Suparshvanath 8) Chandraprabha 9) Suvidhinath (Puspadanta) 10) Shitalanath 11) Shreyanshnath (Sreyamsanath) 12) Vasupujya 13) Vimalanath 14) Anantanath 15) Dharmanath 16) Santinath 17) Kunthunath 18) Aranath 19) Mallinath 20) Munisuvratanath 21) Naminath 22) Neminath 23) Parshvanath 24) Mahavira (Vardhamana)

If you’d like, I can also share brief, pure Jain explanations for any specific Tirthankara or describe their symbolic emblems and stories as told in Jain scriptures.