I've been undergoing transiting Pluto's opposition to natal Jupiter-Uranus last year and this year (and it will be a big part of my next SSR, so around and effective for another year). Pluto first entered partile orb of the natal conjunction February 2022 and will last leave partile orb October 2024, a couple of weeks after the next SSR ends, so this 32 months is the primary duration of the transit's time of reshaping something in my psyche and circumstances.
The basic meaning of Pluto to Jupiter is a radical, transformative shift in Jupiter matters (such as title, prestige, finance, esteem, etc.). That basic definition is neither positive or negative - it could go either way - so (based on life circumstances and other planets involved) it could (in theory) theoretically mean either financial devastation or very positive financial breakthroughs. (Most people don't win the lottery under this aspect, but it's one where you could expect to win the lottery.) The same extreme good OR bad effect is theoretically possible on all the other Jupiter areas.
My standard interpretation for transiting Jupiter and Pluto aspecting in a return chart foreground (a slightly different aspect, but still similar), reads:
My usual interpretation of this aspect - transiting Pluto to natal Jupiter - is summarized as:Turning a corner, reversing the tide, recovery (correcting what's wrong). Shifting circumstances regarding career, finance, and prestige stunningly make or break one's reputation, uplift or debase one's station, or reverse economic conditions (fortune or ruin), perhaps forcing issues into the light for all to see and judge.
While the effects could be (in theory) either positive or negative, I have seen over the last several years that the usual expectation is that it is positive. For example, we all got to see Donald Trump move through his entire presidency with one chance after another of taking him down - many opportunities he could have caved in or been dragged down - only to come out unscathed. Yes, he was impeached twice and history will judge that, but it had little negative practical impact on him. He seemed to have a protective aura: Little (nothing?) could touch him during this time that Pluto was in nonstop transit to his Jupiter. Then, that transit passed and Joe Biden showed up with Pluto transiting his Pluto and dethroned Trump - taking the 'throne' himself.Major shifts in status, finances, rank, or reputation. Significant shifts in career or life-direction (usually positive). Being more in charge of one’s personal affairs. Possible alienation through superiority.
In other cases, it seems to work the same way: Generally, the aspect is positive though, of course, we have to leave room that it could go the other way.