1. im not a mind reader but 5 year ago IRGC said they are working on hydrogen powered engine but i can not find the news anymore and they did not said anything after that and its been 6 years now, i say as IRGC tolled us they made much more powerful missiles but ruhani put them in the warehouse so i guess they want to bring them out if my guess is right then Qhaem SLV would be 5 times more powerful than they said it would be or they want to use it for reentry engine for warheads to make them much much more faster. so im guessing IRGC already built the engine but they do not want to keep it a secret anymore.
2. well Iran military dose not have a Cyber defence force as a official branch of military
( Cyber defence, it exist but not as official branch of military ) so they want to build a massive building and name it national Cyber defence and make it official it will be very nice because they get there own budget from the Ministry of Defense and there will be only one chain of command from Ministry of Defense for both Army and IRGC personals, they will separate from being small groups from the army and irgc and they will form a large group, and they will be more focused.
like this