Hey Kotwica666. Nexus does not have a roadmap, per se. Not one with dates etc. I can give you a quick update on the upcoming releases (may be out of order):
Tritium whitepaper, Tritium Electrum wallet, Tritium hard fork. 3DC whitepaper, Amine (L2 of the 3DC), Obsidian mining vault (L3 of the 3DC).
As for satellite launches, Nexus hopes to launch 2 test satellites in 2018. I also believe work is progressing on developing a mobile wallet.
Shea