In far future, would we be able to atleast detect the signs of physical boundaries of actual Universe/Matter ?

We yet don't know what's exactly beyond the Observable Universe of 93 billion light-years across. In distant future, could our technology allow us to observe much much farther than just 46 billion light-years of radius around the Earth ? We are just using some of quantum physics, calculus, exponential maths & more to explain how big the actual universe could be. But, could we ever be able to 'detect' atleast signs showing the physical boundaries of actual universe or whether it will remain "absolutely impossible to solve" puzzle ?