The series promo is translated, I included that in the 1-54 batch as an extra in a folder marked extra.
The translator is working on fire brigade next so that'll be the next translated special.
4 and 5 are recaps, but not of anything in the batch except the first episode.
Soon I'll release a "N'cha Edition" box set special discs RAW batch. It will include:
1. Penguin Village SOS!! / Affairs of the Heart! / Anything is OK, Mr. Handy special
2. The Legend of Penguin Village's Heroes special
3. Dr. Slump: Arale-chan's Traffic Safety (the first traffic safety special, there's two of them)
4. Promo for Penguin Village SOS!! / Affairs of the Heart! / Anything is OK, Mr. Handy
5. Promo for The Legend of Penguin Village's Heroes
That will be all of the special raws.