given Russia's current economic state, they may export the S-500 but like I mentioned before it's quite doubtful, I'm not saying it's going to happen but there might be a slight possibility.Hisar-A/O are short-range with max range of 25km, and neither are expected to enter into service until 2020 at earliest. Siper (Hisar-U) has a max range of 120km and is expected by the end of 2021 (but there is not much information about this system). S-400 range is 400km and S-300PMU2 range is 200km, so Hisar-U/Siper is still not a substitute for those systems.
Russia only a few years ago accepted to export the s-400 and 40N6E missile in particular, and s-500 isn't even in service with Russia, so I very strongly doubt that the s-500 will be exported any time in the next 10 years.
though Ukraine is currently on an air defence system themselves (Dnipro) it might be quite possible to see Ukraine try to promote that to Turkey. we will wait and see.