Here's some team and driver line-up i found on the Stock Car website:
Of 38 drivers/cars (maximum), 26 are already confirmed, 6 are almost signed and the rest are still negotiating.
Medley-A.Mattheis
Body: ???
Drivers: Giuliano Losacco (2004 Champion) / Guto Negrão
RC3-Bassani Racing
Body: ???
Drivers: Chico Serra / Mateus Greipel
Itupetro-RC Competições
Body: ???
Drivers: Antônio Jorge Neto/ Luciano Burti (Ex-F1. Not signed yet)
Philips Motorsport/Scuderia 111
Body: ???
Drivers: Luis Carreira Jr. / Tom Stefani
Hot Car
Body: ???
Driver: Wagner Ebrahim
Boettger
Body: Chevrolet Astra
Drivers: David Muffato / Alceu Feldmann.
AMG Motorsports-Filipaper
Body: Mitsubishi Lancer (not confirmed yet)
Drivers: Ingo Hoffmann / Sandro Tannuri.
Petrobras-Action Power
Body: ???
Drivers: Cacá Bueno / Thiago Marques
RS Competições
Body:
Drivers: Allan Khodair / ????
Vogel
Body:
Drivers: Thiago Camilo / Gualter Salles
WWB
Body:
Drivers: Popó Bueno / ???? (rumours say Rodrigo Sperafico)
NasrCastroneves Racing
Body: ???
Drivers: Juliano Moro / ???? (rumours say Hoover Orsi)
Katalogo Racing
Body: ???
Drivers: Fábio Carreira / Pedro Gomes (not confirmed yet)
Avallone Motorsport
Body: ???
Drivers: Felipe Maluhy / Nonô Figueiredo / Christian Fittipaldi
JF Racing
Body: ??? (can't tell you yet)
Drivers: Raul Boesel (not signed yet) / Carlos Alves (not signed yet)
Bennamed-Nascar
Body: Mitsubishi Lancer
Drivers: Valdeno Brito / Ricardo Etchenique
Power Tech Racing
Body: ???
Driver: Diogo Pachenki
VR Motorsports
Body: ???
Driver: Reck Júnior
The rest of the teams haven't announced nothing public yet. So we'll have to wait.