Question: Is it possible for TeamCity to integrate to JIRA like how Bamboo integrates to JIRA? I couldnt find any documentation on JetBrains website that talks about issue-tracker integration.

FYI: I heard that TeamCity is coming out with their own tracker called Charisma. Is that true?

Answer: 
There is this plugin
<https://marketplace.atlassian.com/plugins/com.stiltsoft.jira.teamcity>
TeamCity does have a free plugin for Atlassian Confluence. Its provides a nice way to show your build status on your wiki.

You can find it in the Atlassian marketplace:

<https://marketplace.atlassian.com/plugins/com.stiltsoft.confluence.extra.confluence-teamcity-plugin>