Victor wrote:
http://www.space.com/astronotes/astronotes.html

The JWST was headed for a 2011 liftoff. However, project costs have
ballooned and now far exceed the program budget. The project is now
price tagged at $3.5 billion. These increases come from a combination of
additional required work, schedule slip, the delay in a firm decision to
accept the Ariane 5 launch vehicle offered by the European Space Agency,
and increased reserves to meet NASA standards.

Does anyone REALLY believe that there will be a replacement for the
Hubble telescope, or for the shuttle?

One of the core tenants of "intelligent design" is that there is nothing
out there of value.

The game is to cut real costs now and promise replacements for the
future. Some one else will be responsible for the future promises.