Will Intel ever add hyper-threading to it's celeron processors. it seems logical since the Pentium has 2cores/2threads, the I3 has 2cores/4threads, and the I5 has 4cores/4threads.
Are you talking about desktop or laptop CPU's. Pentium desktop CPU's don't have hyperthreading and neither does the I5 only the I3 and I7 do. They haven't added hyper threading yet in how many generations so they probably won't. The Celeron and Pentiums are low end desktop CPU's.