2018 is going to be an exciting year indeed for Kollywood and film buffs, as the leading top six actors of Tamil cinema will have a definite release this year. After a long gap of seven years, 2018 will be the year, in which actors Rajinikanth, Kamal Haasan, Vijay, Ajith, Suriya, and Vikram would be having a definite release.
 

Rajinikanth - 2.0 and Kaala
Kamal Haasan - Vishwaroopam 2 and Sabaash Naidu
Vijay - Thalapathy 62
Ajith - Viswasam
Suriya - Suriya 36 (TSK already released)
Vikram - Saamy 2, Dhruva Natchathiram (Sketch already released).

Throwback Details: 
2011 - No release for Rajinikanth and Kamal Haasan 
2012 - No release for Rajinikanth and Kamal Haasan
2013 - No release for Rajinikanth
2014 - No release for Kamal Haasan and Vikram
2015 - No release for Rajinikanth
2016 - No release for Ajith
2017 - No release for Vikram

2010 was the last time when all these above-mentioned actors had a release. Since then, either one or other actor has missed having a release.

Other leading actors like Dhanush (ENPT, Maari 2), STR (untitled Mani Ratnam film) Sivakarthikeyan (untitled Ponram film), Vijay Sethupathi (Oru Nalla Naal Paathu Solren, Junga), Karthi (Kadai Kutti Singam), Vishal (Irumbuthirai, Sandakozhi 2), Jayam Ravi (Tik Tik Tik, Adanga Maru), Arya (Ghajinikanth), Jiiva (Kee), Jyothika (Naachiyaar), Nayanthara (Kolamaavu Kokila), Trisha (Mohini), will also have their releases.