Confirmed participants
Flying and static:
Yak-3UA
Spitfire XVIe
P-51D Mustang
TBM-3R Avenger
AT-6B Texan / Zero
S-38 Sikorsky
Z-37A-C3
C-45H Twinbench
Casa C131
C-104
A-75N1 Stearman
T-101.2 Tatra
M1-C Sokol
Follow Me (3x Z-226, Z-326)
L-29
MXS (Zoltan Veres)
Li-2
Po-2
R-11b Cimbora
Z-23 Honza
LF-107 Luňak
L-40 Meta Sokol
Z-526AFS-V
Pitts Special S2
Retro Sky Team (3x Z-226, Z-526, Yak-52, Po-2, An-2)
2x Z-126
Shark
Da-42 Twinstar
Cessna 421
WT-9 Dynamic
L-410
R-44 Robinson
Z-37T
Ocovski Bacovia Aerobatic Team (4x L-23)
L-23 solo
Static only (aicrafts from local museum):
Li-2
Il-14
MiG-15
MiG-21
Participation of Slovak Air Force (MiG-29, L-39, Tu-154 and Mi-171) is "promised" but has not been confirmed yet according to the official website.
You can find list of participants with photos of every aircraft here:
http://aviatikteam.sk/en/participants