It's a bit of a mixture...reasons could be...
- Author is on hiatus.
- Not too interested about at the moment.
- Planned to be dropped, unless a miracle happens.
- Will be released a while later (when I have time)
√W.P.B. - Will be released a while later (when I have time)
Gokujou Danshi to Kurashi Temasu - Will be released a while later (when I have time)
Inakami - Author on hiatus
Sol Trigger - Not to interested about at the moment