1. Release date (best guess)
They seem to be pushing for a 2014 release. I'd guess some time in December.
2. Worth getting beta access if release is next month (rumored i think)
Depends on your definition of "worth". If you're not averse to game-breaking bugs and your progress getting wiped occasionally, then it might be worth it for the extra practice you can get in before release. But if not, I'd suggest waiting as you'll get more of an idea of the final content.
3. What is suppose to be in the final release, content wise?
Trading, piracy, bounty hunting, exploration, mining, missions (courier, assassination, combat, escort, etc.). How deep those will be is really anyone's guess. Frontier have stated 25 playable ships at launch. We haven't seen any of the Imperial designs in game yet, and I suspect they're holding those back for the wow effect.
The gamebreaker for you, I suspect, is that there will be no scripted missions (at least not in the way you're hoping). We're certainly expecting an ongoing story with missions relating to and influencing it, but what that's going to be probably won't be revealed until release. Likely to be related to the plot of the official novel.
4. T flight hotas, needed yey or neh. Or will mouse and kb be good enough.
Mouse and KB take a bit of getting used to, but there's no reason you can't become skilled with them. The game is controller agnostic so you can bind anything to anything (e.g. you could control roll, pitch, yaw with your keyboard and throttle with your mouse if you like). There are
some limitations, but generally speaking it's as configurable as it needs to be. If you have an X360 or PS3 controller, they should also work (and you can configure buttons as modifiers to expand the range of controls available).
5. Landing on planets, how much u reckon the addon will be and when it might be due. Also does anyone think it will be any good?
The reason it isn't in the game at release is that Frontier want to make it a deep and meaningful experience. Expect expansions to rock in at quite a high price point (£25-35) but also expect them to be worth it. Planetary landings will necessarily bring high-fidelity procedural planet generation, including cityscapes, dynamic weather, etc. David Braben has also talked a lot about activities such as being able to discover new lifeforms (and then go big game hunting!). I really don't know what they'll actually deliver, but it gives me a warm fuzzy feeling that they're not trying to shoehorn something in just because it was in the previous games. (DB has stated that in some respects he wishes he hadn't included it previously because it didn't really add anything to the game)
6. Rant about little content in utube vids so far for the price u pay compared to what im hoping it has at release.
Again, I'd suggest waiting until you can see what Beta 3 brings. There's likely to be another tranche of features in the Gamma release (and we don't yet know if there'll be Beta 4, but given the 2014 release it feels unlikely). Some of the features we've already seen should also see a bit of rework.