Minecraft Support is experiencing extremely high volumes of requests right now and we're working 24/7 to get caught up. Do we have help? You bet, we just added forty new people to our team. Thanks for your patience, we're going as fast as we can to get them in and helping out!
We're not able to give out ETA's on updates, but these pages can help you out if there is an update available for Dungeons: https://help.minecraft.net/hc/en-us/articles/360045419511-How-to-Update-Minecraft-Dungeons … and https://help.minecraft.net/hc/en-us/articles/360041345271-Minecraft-Dungeons-FAQ …. Thanks for understanding! ^AS