Will this domain work good again but with NEW keywords?

I have one domain which is on Alexa rank place 312.456 and have PR 3.
Domain was work for online games and now i want to change keywords and put script on that domain for questions and answers.
Can somebody tell me if i do that i will go more down on Alexa ,i mean domain will continue to work good like before but with new keywords? Right now domain not have a indexed pages on google but is on Alexa rank 312.456 and have PR3.

Its ok to change keywords and then start with new keywords? I will go down on ALexa rank again or?

Thanks

 

how traffic you are getting ? if traffic depends on the game keywords , game search it can affect when u change to Q and A type name

 

I can't undstend what you mean?
My question is i will go down again if i change from game site to questions and answers, Will i go down again on Alexa or not?

 

yeah it affects the alexa rank.

 

as i understood your question, it will affect your rankings for sure

 

Alexa rank drops if people stop coming to your site and that may happen. PR wont change until people stop linking to you and most probably wont stop, so I wouldn't worry about it.

 

It will affect you. If your keyword target change, that mean you build another backlink, that mean that they keyword target on the pr will down. Unless you choose another better keyword to target on, but it take time to grow up ranking if you start a new keyword again.

 

By " continue to work good", you mean traffic..
offcourse it will effect the traffice if you change the contents of the site altogether