jam tomorrow

Etymology
From Lewis Carroll's  (1871), where Alice is offered “jam to-morrow and jam yesterday &mdash; but never jam to-day”. This is a pun on a mnemonic for the usage of, in Latin (note i/j conflation in Latin spelling), which means “now”, but only in the future or past tense, not in the present (which is instead ).

Noun

 * 1)  Promised benefits that never arrive.
 * 2)  Availability of a resource at a future date.
 * 1)  Availability of a resource at a future date.
 * 1)  Availability of a resource at a future date.
 * 1)  Availability of a resource at a future date.

Translations

 * Greek:
 * Russian: жура́вль в не́бе