Guild Wars 2

After i purchase HoT and type the code does it mean i already have it or i nid to download it?

You have it as soon as you enter the code.

I cant create beta character until the beta test comes right?and when is the next beta test?

Likely, some time in early October. They’ve not announced the next (and last) BWE yet.

BWEs are typically given with one week of advanced notice. TwitchCon and the Druid information reveal is coming in a day or two so I’d say next weekend is likely. They’ll probably announce the next BWE at TwitchCon too.

All players use the same client and everyone’s client will have HoT content installed, purchasing HoT simply flags your account to be able to access the HoT content, which you will be able to access after launch, on October 23rd.

beta characters can only be created and used during beta weekend events, which are announced in advance on the launcher/website newsfeed and various GW2 social media pages.