Arrgh. Decisions, decisions and the new exotic/legendary gear about to drop??!

A big shout out and thank you to everybody who replied to my previous question. Was amazing info, ty! I ended up buying the legendary boots and chest piece (which I now gather will be updated/upgraded in the new release). But now, as a follow up, is everything still relevant with the new gear about to be released ??? Also, I have the following conundrums to which help would be greatly appreciated. 1) Should I wait to buy exotic armour from Xur. Was thinking about buying the Helm of inner most light for my titan striker, but should i wait until next weekend when the new exotics drop? 2) I'm about to level my Vanguard Rep to level 3 to get a legendary weapon. Should i wait again until next week so I have a chance at a new legendary weapon and a commendation? 3) The initial goal was to get a decent level(28) to partake and have fun in the Raid and the VoG, and then max out to lvl 30, but now, I think I read, it will be easier to get to lvl 30 as the max is now 32...?? I suppose the name of the game is having fun and choosing your Destiny, as one guardian pointed out, but to make a school boy error so close to the DLC..hmm. Thank you!