it is not certain yet if žižkov will operate 15t tram instead of t3sucs, or some other depot will get new 15t trams and žižkov will get some older trams from other depots, such as t6a5 from strašnice tram depot or t3r.pv from vokovice tram depot. the t6a5 model is also old and not much prospective; those cars located in žižkov depot were built in 1996 and 1997. elimination of this model is expected since the last of 250 15t's will be delivered in 2018.