Evolution of snakes

Anaconda one of the biggest snakes or the biggest what would happen to it in 1000 years with climate change and all. Well the whole point of an anaconda is to camo into the environment so that's already done. But with global warming and heat rising it's easily causing forest fires. So It grows legs so the heat of the ground floor cant hurt him as much. And he gets more venom to kill its his prey and with the legs which makes a deadly combo.With all other animals it needs to be protected so thick scales will be useful. And with the global warming and the fires prey will be scarce so being fast is the way to eat. And with venom and being big fire and hot floors would be another reason prey would die so having feet/legs will be useful.