1. Im planning to buy xenforo + media and later resource manager is there any discount?
2. For how long for each official addons i have support?
3. Is there URL transfer? Do i need to pay if i change domain? If yes how much each time?
4. Is there wordpress+xenforo working and stable bridge?
1. Im planning to buy xenforo + media and later resource manager is there any discount? No
2. For how long for each official addons i have support? One year, then if you want to continue support you'll have to pay a renewal
If you purchase any add-ons (such as XenForo Enhanced Search), their renewal costs will be automatically added as part of your XenForo license extension. For example, with the XenForo Enhanced search, a 1 year extension would be offered at $50 ($40 + $10).
The length of support for add-ons is tied to the XenForo license. After 1 year, the XenForo renewal costs $40, and renewal for official add-ons is $10-$15 per add-on. In your scenario that would be $70 per year. They all have to be renewed together. Renewing, however, is optional. If you don't see an update you need or you don't need support you don't have to renew. You can renew any time. The software remains fully functional.
You can change the domain any time you like, however you are only permitted to transfer a license to another customer under certain conditions.
The Software may be permanently transferred by the original purchaser to a third party ("Subsequent Licensee") not before 120 days following purchase, provided that the expiry date of the License falls after the date of the transfer. The original licensee may not retain a copy or installation of the Software. The Subsequent Licensee must agree to the terms of this Agreement and waive the right to transfer.