Question regarding subscription/item store
Yes you can still pay monthly and it does unlock a lot of additional content and stuff but there still are power and costume sets that are only available if you buy them. The monthly subscription does come with 400 Paragon Points so if you budget you can unlock those sets for "free".
ParagonWiki: Account: VIP
Power Sets so far has always been sold separately. As for "weapons", which are simply skins for a power set weapon, so far only Titan Weapons power set has an optional weapons pack with more skins. Also some costume sets include weapon skins, like the Retro SciFi set with both pistol and riffle skins, for existing power sets and they can be bought individually or bundled with the particular costume set. They don't have an all weapons bundle.
Power Sets everyone including subscribers has to buy to use:
Street Justice
Titan Weapons
Staff Fighting
Beam Rifle
Beast Mastery
Father Xmas - Level 50 Ice/Ice Tanker - Victory
$725 and $1350 parts lists --- My guide to computer components
Tempus unum hominem manet
Does this game still have a monthly fee? If so can I pay a monthly fee and play all the powers/weapons, without buying them from the shop? Also, do you have to buy powers separately or can you buy 1-2 in a bundle/weapons.