Here is an interesting article on the topic. Balkan returns the 735s to Ansett, leases another 733. Domestic routes now flown by ATRs.
Looks like TU-154s will still fly to some Western European destinations since only 3 737 will not be able to cover all flights. Some newly registered TU5s were seen recently - LZ-LTK/P/R - maybe leased from SU. Apperantly the ones that Balkan owns will be used mainly on cherters.
Any comments or info appreciated.