The volume buying from last week/Friday and today (cf. the 200k is definately a buy) almost certainly suggests to me that we're either seeing the end of an over hang and/or some big players are starting to realise just how cheap AGU is at this price.
As far as a takeover is concerned, I would be very surprised (nay, amazed) if there were not a few potential bidders licking their lips at the thought of buying AGU - the current share price is likely to attract quite a bit of interest from potential 3rd parties IMHO.
AGU’s Greenland project alone is reported to be worth between 20-80p.
Brazil & Austrailian operations both offering further significant value.
IMO, any potential 3rd party interested in AGU would have to be looking at circa 40p MINIMUM IMVHO.