if you are going to replace it at all, why would you not want an 8.33kHz radio?
*Devil's Advocate*
There's a big demand for 8.33.......prices are high......lead-times long.......fitting lead times long.
lots of used 25 kHz kit on the market........peanuts prices......high likelihood of a direct slot-in replacement (maybe even the identical model)
If, indeed, 8.33 mandatory introduction is postponed, late adopters will get better availability, quicker fit and hopefully , lower prices,as production is ramped-up but market becomes saturated.
The longer the old set lasts, the "newer" the new one will be and , all things being equal, will last longer before failure.
*devil's advocate off*
Or buy a Yaesu* handheld as a stop-gap which will then become a permanent backup.
*Seems to be well thought of, on this Forum, compared with the Icom alternative.
edit: Ha ha, Shoestring!....Great minds?