Fortunately where I live I am reasonably safe from bushfires. However, in the southwest of my state we are unlikely to have any meaningful rain for the next 8-10 weeks unless the remnants of a cyclone gets this far south. So my state’s bushfire season is far from over. Also, potentially some of the fires currently burning in Australia may burn for weeks.
With respect to USA firies coming to help, I am sure that assistance is very much appreciated. I would expect countries that have the ability to assist another country to help as I would expect my country to provide support to other countries who need help. I am sure I don’t have to provide links that document when Aussie and Kiwi firies have gone to the USA to help support your firies when your country has needed it.
Canadian firies have also volunteered their services to come to Australia to assist, and some are scheduled to fly home soon after being here for several weeks assisting. Their assistance is also very much appreciated and I am sure our assistance has been appreciated when we have gone to Canada when they required our assistance.