Again, Awesome pack. I read through your change-log that says more to come. I like this pack cause it has unique mods that other packs don't included like Advanced Genetics. I'm nearing my version of endgame soon and I'm wondering are you adding any other unique or useful mods to the pack. Me personally I prefer building structures using different mods and in different location around reason for choosing this pack is because of Galaticraft/Planets so I can build throughout the galaxy. Obviously as a modpack builder you don't want to bog down your pack with too many mods that it would lag out servers. Still I like to suggest some mods that I think would fit into the pack but not that you should necessarily add them but hey if you need suggestions

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Matter Overdrive - this mod screams space plus you get to become an Android.... an Android
RF Tools - just one of my favorite mods of all time, good for early game storage, unique tools, and unique/balance mob spawner system (suggest to disable dimension builder for servers and it can make resource gathering too easy i love it though)
Ztones- because I love building who doesn't it allows more creative options.
Buildcraft Compact- buildcraft support mod that allows you to move/build structure faster if you're familiar with the builder.
Securitycraft - rarely seen but a fun mod to play with
Ancient Warfar - fun, unique, rarely seen
Practical Logistics- very unique mod, fun to use in design and early game organization of ores,items, chests, etc
Nuclearcraft,Rotarycraft,Electricraft (triple threat)- these mods are supposedly hard to get into but i find them fun and good for a tech pack. Have you ever tried building a nuclear reactor on a space station (fun!)
Note: these are only suggestions to take with a grain of salt. I love the pack as is and just throwing stuff out. I honestly have no complete. One of my favorite modpacks I've every played. Great job!