Karkonosze National Park will open the red trail from Spalona Strażnica to Dom Śląski on April 25:

We plan to open the section toward Odrodzenie for the May holiday weekend. We need to install safety barriers above the glacial cirques. There is snow there, so accidents can easily happen, and following the winter route through the mountain pine is now almost impossible.

What about Śnieżka?

KPN:

Access to Śnieżka remains closed. Poland’s borders are closed, and reaching the summit is impossible without crossing into the Czech side.