I don't really care about the name of a game engine.
But what I think about the names.
1. I think Leadwerks is a unique name. You can find videos about the game engine on YouTube. It has left a positive and negative reputation with people, mostly negative because it looked outdated, I think.
2. The name of Ultra Engine is very high because the standard is Unity or Unreal Engine. Therefore, many people who have used other game engines before may have high expectations, which may lead to negative reviews afterwards. But if you take the price into account, the Ultra game engine is exactly what I think is great, that the developer works closely with the community and also listens to hobby developers. I don't think there is any other game engine where I have seen that.
3. Maybe a completely new name would be a good idea.