Does anyone know when's the next Google update?

[SEO practioner]

Does anyone have any idea when is the next Google update?
Will it be a deep crawl again or just a small walk in the park? :-)

[lazerzubb]

Google Update History [webmasterworld.com]

Other useful links:
Google Update Faq [webmasterworld.com]
How to tell if a Google Update has started [webmasterworld.com]